I99 Tws Bluetooth 5.0 Wireless Earbuds with Touch Sensor For Mobile. Wireless double ear stereo design, separation of left and right ear channels. You can use the headset with left or right ear only (monaural mode), or use them in pairs (binaural mode). Press 5 seconds to turn OFF in IOS the TWS i99 is automatically linked by removing the headphones from the box / charger, in ANDROID devices it is linked manually. The high sensitivity microphone reduces ambient noise and captures the detail of the voice, ideal for calls inside the car or use at work. You can simultaneously connect two smartphones, so you can seamlessly switch between your company and your personal phones. The headphones and the cargo box case adopt a magnetic design, which makes them easy to use with a longer lifespan. Smart compatibility: compatible with all mobile phones, including Bluetooth, tablets, notebooks, singing, QQ music, movies, etc., universal mobile phones. TWS i99 is a best product with excellent sound quality specially designed to fit in ears.