LENOVO HX106 with 180 ° Swivel Ear Hook - Business Bluetooth Earphone Bluetooth 5.0 is a more stable signal and faster transmission 160mAh large capacity battery ensures long-term use 180 ° rotatable design, the earpiece supports left or right ear HIFI sound, bass, stereo, perfect sound experience Noise reduction, HD phone call Waterproof and sweatproof, great for exercise Built-in ear hook and soft silicone earbuds keep you comfortable for hours  Specification: Brand: Lenovo Model: HX106 Bluetooth version: V5.0 Battery capacity: 160 mAh Playing time: more than 20 hours Standby time: about 120 hours Speaker diameter: 10 mm Sensitivity: 110 dB ± 3 dB at 1 kHz Range: 10 meters How to wear: ear hook  Compatible with: Android / iOS devices that support Bluetooth  Set contains: 1 x BT Earphone1 x English and Chinese user manualOriginal packaging