BT221i Wireless Bluetooth Ear-Clips, Grey, 18 Hour Battery, Microphone | USB-C Charging, In-Line Microphone with Volume and Audio Remote, Sweat Resistant

These are not KSC75s so no they are not the wireless version of that. The KSC75 is in its own category. Their sound quality is without equal in the audio space--especially at the price they go for. These BT221is have great sound quality for what they are which is great portable bluetooth headphones great for an active person. Let's go over all of the negatives first. 1) The bluetooth connectivity is the weirdest I have ever seen. I have been using bluetooth stereo headphones since 2008 when the iPhone 3GS gained the ability to play stereo over bluetooth. So I am very aware of how bluetooth works. The iPhone remembers the volume that was last used on every headphone you connect. So when you disconnect a device and come back to that same device, it will be at the perfect volume that you last used. Well this device throws that idea out the window and reconnects at 80% volume always. You can literally see the device increasing the volume from where you last set it to 80% volume right after connecting so this is BY DESIGN. These headphones are really not that loud so the person complaining about getting deafened by the headphones is full to it! Also these headphones take a ridiculous amount of time to reconnect to my phone. Around 15 to 20 seconds every time! I have never seen any bluetooth device that worked like this. I have used dozens of BT devices and they all connect in 3 to 4 seconds at the most! 2) They feel really cheap and plasticky. 3) They let all sound in as they don't even cover your ear opening. They perch at the top oj your ears so you will hear everything going on around you which is also a positive actually as you are going to be aware of your surrounding if walking or hiking(which is what I use them for. Here are the positives 1) They sound great. They have the Koss sound! Sure they lack bass but honestly your ears will adapt and after about 10 minutes, they sound just as good as any other pair of decent headphones. Great clarity and awesome midrange. 2) They are able to activate Siri which Koss doesn't even advertise. Just click the center button twice for Siri 3) The microphone is pretty good. I talked to my brother for a few hours and he never mentioned that he was not able to hear me fine. 4) Battery life is better than advertised. I get about 8 hours which is 2 hours more than claimed. 5) Charges quickly. Takes about an hour and a half for full charge 6) The controls are easy to use. They spaced the volume buttons far enough from the play pause that you are able to use the controls without fumbling really quickly. Much better control than the Koss Ports Pro wireless. 7) So comfortable! they disappear on. your ears! They are so light you will forget that they are there. 8) They also have a really nice open sound stage due to their above the ear design. It is some weird kind of magic going on. How can a headphone which does not get near your ear opening provide any kind of decent sound? One of the common complaints is that the ear clip breaks off. I believe this is because people are trying to push the headphones down to ge the driver close to their ears. This is also why some people are saying they are uncomfortable as they try to jam the things down their ears instead of just leaving them up on the ear where they belong. The best way to put these on to be comfortable and secure is to rotate the clips out and place on the ears and then push the drivers close to your ear. This might also be why some people have the cushions fall off. If they leave the clip close and shove the clip on your ears, this might lead to quick wear of the cushions. I have only had them for a week but I have worn then for 14 hours or so and so far there is no indication that the cushions want to come off. Anyway, I love these headphones and I recommend them despite their idiosyncracies

My go-to headphones are wired porta pros, but I wanted something wireless for listening to podcasts and music while walking around home or at the gym. For twenty bucks they are certainly better than anything you'd pick up at Walmart or Dollar General for the same price. Pros: * Good sound * You can hear your surroundings * Comfortable semi-adjustable ear clips * Wire is good for taking the headphones off and wearing them around your neck * Good tactile buttons * Easy to pair Cons: * Always connects to phone at way to loud of a volume (might be an Android issue) * Sound is probably the best you can get for $20 and wireless, but it's still noticeably worse than $40 wired porta pros * Mic quality is meh. * Micro USB port These are good for low movement exercising like weight lifting, but I am not sure if they would do well on runs.

Update (10/16/2023): After having tried another brand of earphone I can say the audio quality is fairly balanced. Compared to SoundPeats the bass is inferior but at this price point Koss did a good job. I have had these less than a year and the silicone/rubber on the controls has either caved in or come out of the housing. This has caused the '+' and '-' on the effected side to become completely nonfunctional. One set randomly disconnects bluetooth (I have to go into the phone settings and tap to reconnect, even though it says it's still 'connected' then adjust the volume again). I've bought a replacement set because this is the best option I've found under $50. Update: As of yesterday (2/4/2023) the left earhook joint on the other headphone set has developed the same squeak. Given my issues with loud/higher pitched noises, this is going to be a problem. I've edited the media in this review with a video of the sound. The charging plug 'door' has long since broken off of the first set. First off, as a warning: pay attention to the volume settings once it's connected!! I don't know if it's just the ones I've gotten and/or my phone but, no matter what volume it was set to previously or what volume my phone is at, it always connects at almost full volume! I've hurt my ears several times as I was learning this. I bought this as a replacement for the Marathon headset that kept breaking on me and because I needed something I could use on just one ear for migraine issues. The sound is about what you'd expect. Mostly flat, tinny, and with a tendency towards mid and treble. While you can hear the bass, it's mostly an afterthought. I'm an audiophile but it's exceptionally hard to find anything other than this quality at this price if you can't deal with in-ear designs (even those are debatable). I was surprised at the low-end quality since a little research into Koss revealed that it's a decent audio brand. The earpieces hinge like a door so you can make them as tight or loose as you need. They are hard plastic. I haven't had the issues with the ear pads tearing but I haven't had is for that long. One the hinges has started to make a grating plastic on plastic sort of odd screeching noise when moved. Battery life is okay. I use them most of the day and can get away with one charge until evening if I don't take phone calls. I've got a backup if I need it, which I have several times. The 'low battery' sound is loud and obnoxious (it comes through better than the audio). The charger is micro USB, not USB-C. If you love definition when listening, you're not going to get it with this. But it's a good option for casual podcast listening, audiobooks, and the like. The cords seem flimsy (one came with slight bends at the ends of the controls). While there's a sturdier piece bridging into the controls, for whatever reason the company opted to have it go directly in the ear pieces with no reinforcement. The controls are easy enough to use. One button for play/pause/off/on/answer/hang up. Off/on is the only thing that takes a long press and that's indicated by a tone (once again, obnoxious and much louder than the audio). Volume control is a raised '+' and '-' but you do have to press a bit to the inside of those to get it to register. Phone call quality is 'meh.' I usually have to switch to the handset/speakphone to not be muffled or sound like I'm 'down a hallway.' It's the same on my end, especially if the person I'm talking to drops the volume of their voice. If there's ambient noise, it will be heard, and this headset doesn't separate out sounds so hearing a person if their end is picking up sounds is almost impossible. Leaving voicemails with it is not an option. But most of the people I talk to are used to sub-optimal call sound quality (if it's not the headset, it's the location/reception) so it's not a big deal. I only had a little issue connecting it but that could have been my phone. You push down and hold on the middle button (raised dot). It'll come up on your phone and connecting it usually easy at that point. Once you turn it on, it takes a moment to connect (once again, indicated by a super loud noise!). As for using it on just one ear, I turn it into a 'necklace'. This may only work because I have a more slender neck. I'll loop the cord around the back of my neck and hook the unused earhook over the cord. While I have to be careful about the tightness, I've even been able to use it like this bundled up for cold weather walks.

I'm not a fan of earbuds or "sport headphones" and have always much preferred the clip-on variety. These days I need wireless, though. As far as I can tell these are the only wireless clip-on earphones currently available, and they meet my needs exactly. I haven't had any problems with the connection dropping, the battery life is good (used them 4 or 5 times on long bike rides without charging so far) and the sound is good for what they are. (Don't get me wrong; these aren't Bose-quality sound, but they are 70% as good for 10% of the price.) Most importantly, they are very comfortable. I hesitated to buy because of poor reviews, but I'm sorry I didn't buy sooner.

Initial impression: They stay on my ears well, are relatively comfortable and lightweight, and the sound quality is decent. What I don't like is that the foam falls off very easily. It is super annoying as they fall off multiple times throughout the day. Also they seem to lack an automatic shut off which wastes the battery. Sometimes has trouble connecting to my phone. Update: I have tied the foam pieces on and that seems to be working ok. Edit 3/31/23: I bought these at the end of December 2022 and they broke yesterday. The part that holds the ear clip on broke. I was using them most days and I am not hard on them. I'm not even sure what caused them to break. I picked them up and they were broken. I do not recommend.

I am one of the few people who can't wear or use earbuds as they sometime chafe my ears among other problems I can't say in polite company. I've tried Raycons, samsung buds and keep running into the same problem. Thus finding low profile bluetooth phones are difficult to come across. I prefer this type of headphones as they don't cause the same issue I have with earbuds, low profile and while it's a bit of a change, it's better than the ear ache I get from ear buds. My only issue with the product is the battery life and I don't notice any of the advertised *noise cancelation* though the sound quality is very good and I can't complain about the precise controla; I ordered 2 of these things to combat the short battery life. XD

These, sadly, are not Koss's best product by a longshot. Though the clip piece is rather sturdy and easy to move, with about a 340 degree rotation circle, only stopped by the actual reverse side of the circular headphone piece, so it's really excellent in that regard, I would figure especially if you had long hair. It doesn't come with any adjustable joints other than the main swivel joint, nor did it have rubber protectors like other models I've used have. Thankfully, the clip is very smooth in texture, and designed in a comfortable way. Adjustments are rarely necessary, and the pads dont stick out like Dumbo ear satellites like other ear clip models do. The sound is definitely above par, but not superior to most headphones, especially those huge noise cancelling headsets. Those big kinds and earbuds hurt my ears, so I never use them. I prefer ear clips with pads. The connectivity is decent, but takes som time to get fully recognized and connected for both call and media sound. Probably around 10 seconds once the button is held. It's easy to tell if its hooked up, as there are different beeping sounds it plays when you turn them on or off, connection, losing or lost connection, and low or dead battery. I would say the battery life is about 6 hours, but that's reasonable for a small battery. But for such a small battery, it sure charges slowly. About 3 hours from empty to full, compared to my phone (Samsung Galaxy Note 8) at 2 hours. The flashing blue light shows the power is on, and solid red is charging, solid blue is fully charged. The main problem I have with this product is the ear pads. The foam piece over the earpiece comes off easily. I mean really easily. I've had these for 2 months and after 1 month they already fell off. I ordered 2 sets at once, and both pads on both sets fell off. Trying to put them back on is impossible. Unless you use superglue. But who wants to do that? Last thing is the charger port and charger cable. Absolute crap. You have to fiddle with it to even make a proper connection. I had to take the charger cord and the longest earphone cable (the signal device is off center) and wrap it around my water thermos to get a solid connection. Plus the rubber cover over the port gets in the way and further bends the connector. I just tore the covers off. Then I used the USB charger from my gamepad, and it fit snugly and plugged in perfectly without having to adjust it to get a connection. Now I have no issues. Plus the cable is short... but has a nice USB female plug to fit the other USB male plugs into it, which it has in the box, but also so you can use 2nd hand USB to micro USB cables if you want. So I give this 2 stars. Looking for better ones already after 2 months. Dont bother with this product. Sorry Koss. Most of your other stuff is great, but you missed the mark on these. Fix the charger and the earphone pads, then you'll have a product worthy of 5 stars, which i would actually like to see.

I love these for listening to audiobooks on my phone. I can't tolerate earbuds and prefer the small headphones that clip or hang on the ear. These fit nicely, like my worn-out but beloved wired Sony MDR-Q68 clip-on headphones. These Koss headphones were easy to charge and easy to pair with my phone, and I quickly learned to use the 3 buttons to control my books. I can't speak to the sound quality because I'm using them for books rather than music. They seem quite delicate, so I wonder how long they will last. The only con I encountered is the controller wired below the right headphone...no matter how I adjust the cord length between the left & right headphone, the controller is always tugging down and bugging me. It would be great if the controller was incorporated into the earphone pieces themselves.

I was looking for clip on headphones for year but could never find the right ones. They were either crazy expensive or from some sketchy unknown brand. I've heard good things about Koss so I gave these a shot, here is a list of the pro's and con's I have with them: PROS: - good build quality, they are all plastic but don't feel cheap like your everyday library headphones. - good sound quality, even though the drivers aren't held snug against your head by a headband, the sound was surprisingly good. - they fit comfortably around your ear, even with glasses on. CONS: - the cable feels very fragile, at just under 2mm thin it feels like I could cut them with my fingernails. make sure that the cable isn't stressed or bent when using or charging. - the battery life is okay, surprising for its size. But at lower charge (~20-30%) they will give low battery 'beep' warnings until they shut off. I'm not sure if this is something the headphones do or my phone but It also sometimes sends frequent push notifications to your phone while at lower charge, which can get very annoying. PRO/CON: - They are very light, apart from them clipping to your ear, you barely feel them. But because they are so light, the button control will swing quite a bit while exercising. all and all, pretty good headphones, make sure you keep them charged.

I picked these as a replacement for Sony MDR series headphones, long discontinued. They are comfortable to wear, although in the long term, I worry that the ear loops lack of spring loading may weaken over time. For reasons I do not understand, every time they connect, the volume is near maximum, a feature which not present on other Bluetooth headphones, so I always lower the volume prior to starting any media. Unlike the Sony MDR though, these have a microphone, and remote controls, so they have more versatility.

Son incroyable. Tenu à l’oreille parfaite et ne bloque pas le son extérieur lorsque je cours. Extrêmement satisfait.

Koss Kopfhörer BT221ik Ear Clips - Blau inkl. Versand ca 47€. Großartig! Angenehm klein. Gute Verarbeitung. Die Ohrhalterungen, lassen sich drehen und können so gut ans Ohr angepasst werden. Top Bass und Klang. Habe die Ksc35 192568 Wireless on-Ear Clip-Schwarz (67€) neben die zuerst genannten gelegt. Deutlicher Größenunterschied. Ohrklipps hart und nicht verstellbar.

Muy buenos audífonos "Over the ear", pero yo haría un esfuerzo y compraria los KSC35 que por la diferencia de precio son muy superiores.