* BT 5.0 technology, features one-step pairing, stable signal and effective connection with 15m barrier-free transmission distance.
* Using CVC 6.0 digital noise reduction technology, it can intelligently eliminate external noise for a clearer sound quality.
* Easily answer / hang up / reject a call and adjust volume by clicking the buttons, simple and quick to operate.
* 180°rotatable head allows you to switch wearing between left ear and right ear, flexible and convenient.
* Ergonomic clip-ear design with soft silicone earplug, brings lightweight, comfortable and stable wear during driving or exercise.
Features: * BT 5.0 technology, features one-step pairing, stable signal and effective connection with 15m barrier-free transmission distance.  * Using CVC 6.0 digital noise reduction technology, it can intelligently eliminate external noise for a clearer sound quality.  * Easily answer / hang up / reject a call and adjust volume by clicking the buttons, simple and quick to operate. * 180° rotatable head allows you to switch wearing between left ear and right ear, flexible and convenient. * Ergonomic clip-ear design with soft silicone earplug, brings lightweight, comfortable and stable wear during driving or exercise.  * IPX7 waterproof level easily deals with daily water splashing. Support battery display on the phone (ONLY compatible with iOS system). * Widely compatible with mobile phone, tablet, laptop, smartwatch, music player and other devices with BT 5.0 or lower version.  Specifications: Model: S109 Material: ABS Color: Black BT Version: 5.0 Battery Capacity: 120mAh / 3.7V  Transmission Distance: 15m (no barrier)  Charging Time: 1.5H Call Time: 8-10H Standby Time: 180H Waterproof: IPX7 Item Weight: 11g / 0.39oz Package Size: 15.6 * 8.5 * 2cm / 6.14 * 3.35 * 0.79in Package Weight: 19g / 0.67oz Note:  * Please read the user manual carefully before using this product. * There may be 1-3 errors due to manual measurement.  Package List: 1 * BT Headset 1 * Charging Cable 1 * User Manual (Chinese, English)