Bluetooth Headset V4.1 Wireless Handsfree Bluetooth Earpiece with Microphone Wireless Earbud for Office Business Trip Driving Compatible with All Mobile Phone by Anwoor High-Quality Bluetooth HeadsetIn order to audio frequency ensures maximum receive signal quality. Anwoor Bluetooth Earpiece is equipped with 4.1 CSR chip high-end. Hi-Fi Sound QualityFor ensuring Hi-Fi Stereo Music Sound. Let you get high quality and clear voice to the noisy environment such as driving, centre street, Gym, shopping malls. Anwoor Bluetooth headset with Built-in HD Microphone, and ANC (Ambient noise cancelling) earbuds. Outstanding PerformanceAnwoor Bluetooth headset can telescopic to 0.15inch, suitable for all sizes of ears, you can adjust the angle of earbud to fit your ears better. 180adjustable earpiece fits perfectly for your left and right ear convert, 9 hours of listening/ talk time, 360 hours of standby time, 10-meter working distance. It only takes 2-3 Hours to get fully charged. Comfortable and portabilitySoft rubber material, especially the longtime wearing a headset. Comfortable and portability only 0.35oz, will not have any burden, no heavy feeling, the ears will not be painful, but also non-slip non-drop no pain all-day wear, very suitable for Driving, Office and Business trip. Compatible deviceIn order to enable your two mobile phones to use the Bluetooth headset at the same time, Anwoor has the possibility to connect two devices at the same time. Even if you have two mobile phones, you will never miss a call any more. Compatible with iPhone iPad etc,. Samsung iPhone Huawei LG etc, and iOS, Android Mobile Phones. Almost all smartphones can work with this earphone. MONEY BACK GUARANTEE One year warranty, 50 days unconditional return guarantee.