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 Headset AnWoor Bluetooth Earpiece is equipped 4.1 CSR high-end and APTX, ensures maximum signal quality, and guarantees. Hi-Fi Sound Quality AnWoor Bluetooth headset with Built-in HD Microphone and CVC6.0 noise cancellation. ensure Hi-Fi Stereo Sound Quality. Let other party get high quality and clear voice even in noisy environment such as (driving, street, Gym, shopping malls) Superior Performance 180adjustable earbud fits perfectly for your left or right ear, up and down can be stretched or shortened to 0.4cm, suitable for all sizes of ears, you can adjust the angle or length of earbud to fit your ears better. 9 Hours of Listening/ Talk Time, 240 Hours of standby time, 10-meter working distance. It only takes 2 Hours to get fully charged. Comfortable and Lightweight Soft rubber material, comfortable and light weight only 0.4oz, Even if the long time wearing a headset 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 and Office. Fully Compatible Allow two Bluetooth smartphones to connect at the same time. Even if you have two mobile phones, you will never miss a call any more. Compatible with iPhone iPad iPod.. Samsung ...LG, Huawei, Motorola Sony and iOS/Android Mobile Phones. Almost all smartphones can work with this earphone. MONEY BACK GUARANTEE : One year warranty, 45 days unconditional return guarantee.