---
product_id: 369207287
title: "Razer Hammerhead Bluetooth Truly Wireless in Ear Earbuds with Mic (New 2021) - Black - Rz12-03820100-R3A1"
brand: "razer"
price: "€ 4.31"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.de/products/369207287-razer-hammerhead-bluetooth-truly-wireless-in-ear-earbuds-with-mic
store_origin: DE
region: Germany
---

# 16.8M customizable RGB colors 60ms ultra-low latency gaming mode Active Noise Cancellation tech Razer Hammerhead Bluetooth Truly Wireless in Ear Earbuds with Mic (New 2021) - Black - Rz12-03820100-R3A1

**Brand:** razer
**Price:** € 4.31
**Availability:** ✅ In Stock

## Summary

> 🎧 Level up your sound game with style and precision!

## Quick Answers

- **What is this?** Razer Hammerhead Bluetooth Truly Wireless in Ear Earbuds with Mic (New 2021) - Black - Rz12-03820100-R3A1 by razer
- **How much does it cost?** € 4.31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/369207287-razer-hammerhead-bluetooth-truly-wireless-in-ear-earbuds-with-mic)

## Best For

- razer enthusiasts

## Why This Product

- Trusted razer brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Custom Comfort Fit:** Secure, ergonomic in-ear design with multiple ear tip sizes ensures all-day comfort and superior noise isolation.
- • **Pro-Level Gaming Mode:** Experience near-instant audio response with 60ms low latency, giving you the competitive edge on Bluetooth devices.
- • **Crystal Clear Calls Anywhere:** Dual Environmental Noise Cancelling microphones filter background noise for flawless voice communication.
- • **Vibrant Razer Chroma RGB Lighting:** Express your unique style with 16.8 million colors and dynamic effects that make your earbuds a statement piece.
- • **Immersive Active Noise Cancellation:** Block out distractions and dive deep into your music, movies, or gaming with advanced ANC technology.

## Overview

The Razer Hammerhead True Wireless Earbuds (2021) combine cutting-edge Active Noise Cancellation, ultra-low latency gaming mode, and customizable Razer Chroma RGB lighting in a sleek, ergonomic in-ear design. Perfect for gamers and audiophiles seeking immersive sound, clear calls, and a personalized look, these Bluetooth earbuds deliver a premium wireless audio experience backed by a 1-year manufacturer warranty.

## Description

Razer Hammerhead True Wireless (New 2021) - Earbuds - Black - RZ12-03820100-R3A1

Review: 3 years of use - It's been 3 years since I have bought this and it's working like a charm till now. Great sound quality ever in a gaming centric earbuds.
Review: Worst battery and no technical support - Bought for 8K. After one year the battery draining fast for one of the earbud. There is no technical support to fix the issue. I don't recommend buying these earbuds. Better go for mobile brand earbuds.

## Features

- Powered by Razer Chroma RGB: With 16.8 million colors and a suite of effects to choose from, bring out your style and stand out from the crowd with the ultimate wireless earbud flex
- Active Noise Cancellation (ANC) technology: Whether you’re grooving to your favorite beats, gaming, or watching a movie, eliminate all distractions with Active Noise Cancellation that detects and nullifies unwanted ambient noise
- 60ms Low Latency Gaming Mode: Activate Gaming Mode to fire up the Razer Hammerhead True Wireless’ leading performance while gaming on Bluetooth devices for a more seamless experience; In-Ear Design: Get a comfortable, secure, in-ear fit that offers enhanced noise isolation with our new design. Includes additional ear tip sizes for customized levels of comfort
- Dual Environmental Noise Cancelling (ENC) Microphones: Armed with smart microphones that detect, identify, and reduce unwanted background noise, voice communication on the Razer Hammerhead True Wireless is now clearer than ever
- Warranty Description: 1 Year Manufacturer

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09FLJKSFX |
| Age Range Description | Adult |
| Antenna Location | Gaming |
| Audio Driver Type | Dynamic Driver |
| Best Sellers Rank | #192,802 in Electronics ( See Top 100 in Electronics ) #5,142 in In-Ear Headphones |
| Box Contents | Ear Cushions, User Manual, Wireless Charging Case |
| Brand | Razer |
| Brand Name | Razer |
| Cable Features | Without Cable |
| Carrying Case Color | Black |
| Colour | Black |
| Compatible Devices | Smartphones, Laptops, Tablets, Desktops |
| Control Method | Touch |
| Control Type | Noise Control |
| Customer Reviews | 3.4 out of 5 stars 93 Reviews |
| Ear Placement | In Ear |
| Earpiece Shape | Rounded tips |
| Enclosure Material | Plastic |
| Form Factor | In Ear |
| Frequency Range | 20Hz - 20kHz |
| Headphone Form Factor | In Ear |
| Headphone Jack | bluetooth |
| Headphones Ear Placement | In Ear |
| Impedance | 32 Ohms |
| Impedance Unit of Measure | 32 Ohms |
| Importer Contact Information | Acro Engineering Company |
| Item Type Name | Headset |
| Item Weight Unit of Measure | 54 Grams |
| Manufacturer | Razer, Razer |
| Manufacturer Contact Information | Razer |
| Model Name | RZ12-03820100-R3A1 |
| Model Number | RZ12-03820100-R3A1 |
| Network Connectivity Technology | Wireless |
| Noise Control | Active Noise Cancellation |
| Number of Items | 1 |
| Packer Contact Information | Razer |
| Product Features | earbud |
| Specific Uses For Product | Gaming |
| Style Name | TW (2nd Gen) |
| Theme | Movie |
| Unit Count | 1 Count |
| Warranty Description | 1 year manufacturer |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology Type | Bluetooth |

## Product Details

- **Brand:** Razer
- **Colour:** Black
- **Ear Placement:** In Ear
- **Form Factor:** In Ear
- **Noise Control:** Active Noise Cancellation

## Images

![Razer Hammerhead Bluetooth Truly Wireless in Ear Earbuds with Mic (New 2021) - Black - Rz12-03820100-R3A1 - Image 1](https://m.media-amazon.com/images/I/514SN2l94AL.jpg)
![Razer Hammerhead Bluetooth Truly Wireless in Ear Earbuds with Mic (New 2021) - Black - Rz12-03820100-R3A1 - Image 2](https://m.media-amazon.com/images/I/51rYcQ6n88L.jpg)
![Razer Hammerhead Bluetooth Truly Wireless in Ear Earbuds with Mic (New 2021) - Black - Rz12-03820100-R3A1 - Image 3](https://m.media-amazon.com/images/I/51XV1NBYLEL.jpg)
![Razer Hammerhead Bluetooth Truly Wireless in Ear Earbuds with Mic (New 2021) - Black - Rz12-03820100-R3A1 - Image 4](https://m.media-amazon.com/images/I/51FSOUO1j3L.jpg)
![Razer Hammerhead Bluetooth Truly Wireless in Ear Earbuds with Mic (New 2021) - Black - Rz12-03820100-R3A1 - Image 5](https://m.media-amazon.com/images/I/51IgsfUeJ5L.jpg)

## Available Options

This product comes in different **Pattern, Color, Style** options.

## Questions & Answers

**Q: Battery life?**
A: It has a relatively good battery but personally I would recommend you buying the nothing ear 1 if you can afford that.

**Q: Does the case charge wirelessly?**
A: Nope

**Q: Driver size?**
A: 13 mm

**Q: Is this earbud comes with mic?**
A: Yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ 3 years of use
*by V***H on 17 January 2025*

It's been 3 years since I have bought this and it's working like a charm till now. Great sound quality ever in a gaming centric earbuds.

### ⭐ Worst battery and no technical support
*by A***R on 7 September 2024*

Bought for 8K. After one year the battery draining fast for one of the earbud. There is no technical support to fix the issue. I don't recommend buying these earbuds. Better go for mobile brand earbuds.

### ⭐⭐⭐ Bad battery
*by V***I on 16 July 2025*

Sound quality is good enough, but battery drain is really bad. Touch control is bad and not as responsive as expected. After almost 2 years of usage, left bud connectivity with charging case is bad, so it's almost useless now.

## Frequently Bought Together

- Razer Hammerhead Bluetooth Truly Wireless in Ear Earbuds with Mic (New 2021) - Black - Rz12-03820100-R3A1
- ASUS ROG BP4701 Gaming Laptop Backpack with Holographic Cybertext Printing, Roll Up Design, Suitable for up to 17 inch Laptop (Black)

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**Shop now:** [https://www.desertcart.de/products/369207287-razer-hammerhead-bluetooth-truly-wireless-in-ear-earbuds-with-mic](https://www.desertcart.de/products/369207287-razer-hammerhead-bluetooth-truly-wireless-in-ear-earbuds-with-mic)

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-03-07*