I have selected mph ~ but What is difference between set 1 and set 2 ?

Read the product details at the bottom of the screen. It says Set 1 (without car charger adaptor) / Set 2(With Car Charge Adapter)(optional)

Will this plug directly into the obd system? as i have a cable already in place .

Hi Jean, I'm not sure what an obd system is but as regards setting it up, it simply plugs into your car cigarette lighter socket.

Is this device switchable from MPH to KPH?

Mine seems to be MPH only although I do remember seeing some that did both

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Car HUD Headup Display MPH GPS Digital Speedometer with LED Large Font Display for Car Truck SUV Motorcycle(With Car Charge Adapter,MPH)

Car HUD Headup Display MPH GPS Digital Speedometer with LED Large Font Display for Car Truck SUV Motorcycle(With Car Charge Adapter,MPH)

Product ID: 511758459

Details

Brand
KKnoon
Item weight
45 Grams
Material
Acrylonitrile
Number of items
1
Unit count
1.0 count

📏3.0-inch HD large LED display

🔌USB plug-and-play with auto power sync

🛰️Dual GPS & BeiDou satellite positioning

€ 29.35

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Description

🚗 Elevate your drive with precision speed at a glance!

EFFORTLESS PLUG PLAY - USB-powered with automatic on/off synced to your engine—no complicated setup, just drive.
NEXT LEVEL GPS PRECISION - Dual GPS and BeiDou satellite positioning delivers ultra-stable, lag-free speed updates for confident driving.
SLEEK MINIMALIST DESIGN - Curved, frosted texture housing fits seamlessly on any dashboard without blocking your view.
CRYSTAL CLEAR REAL TIME SPEED - 3.0-inch LED display with large fonts ensures instant speed visibility day or night without glare.
UNIVERSAL VEHICLE COMPATIBILITY - Perfect for cars, trucks, SUVs, motorcycles, and even boats—one device for all your rides.

The KKnoon Car HUD Head-Up Display features a 3.0-inch full HD LED screen with large fonts for clear speed reading. Utilizing dual GPS and BeiDou satellite positioning, it provides fast, accurate speed updates without delay. Its USB plug-and-play design automatically powers on/off with your engine, ensuring hassle-free use. Compact and stylish with a curved frosted finish, it fits all vehicle types including cars, trucks, SUVs, motorcycles, and boats, enhancing driving safety and awareness.

Specifications

ASIN	B0BTYTLWW7
Best Sellers Rank	15,108 in Automotive ( See Top 100 in Automotive ) 36 in Car Instruments
Brand	KKnoon
Customer Reviews	3.9 3.9 out of 5 stars (298)
Item Weight	45 Grams
Manufacturer	KKnoon
Manufacturer Part Number	1
Material	Acrylonitrile Butadiene Styrene (ABS)
Number of Items	1
Number of Packs	1
UPC	755763269927
Unit Count	1.0 count

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€ 29.35

Duties & taxes included

In stock

Sold byAmazon GERMANYDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to GERMANY.

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