Wireless Headphonestrue Wireless In-ear Headphones Open Listening HIFI Shocking Sound Quality -speed Bluetooth 5.4 Comfortable In-ear Wearing Features: 1, open hearing comfortable better listening, HIFI shock sound quality -speed Bluetooth 5.4 chip, intelligent power digital display comfortable not into the ear to wear, positioning sound does not sound leakage , -definition electroplated metal texture, different from other ordinary headphones, electroplated metal texture is more exquisite full of senior sense of sight and ! 3, suspended sense of lightweight does not enter the ear, all-weather lightweight and comfortable, long wearing not tired ears, listening to at the same can sense the outside through the perception of the information, but also to better the ear canal health! 4, -resolution unit three-frequency enhancement surging sound quality, acoustic tuning, elasticity composite diaphragm, with excellent density and elasticity of - sound quality, large moving shock sound, let you enjoy the scene of the music! 5, directional sound technology to without sound leakage, the directional sound, accurate and efficient sound into the ear to ensure efficient of sound, effectively reduce most of the sound leakage, intelligent call noise reduction, no fear of noise calls clear Product Description: range 15 meters Functions: , noise reduction, conduction, long battery life, call function, voice control, support, digital display screen Bluetooth protocol: 5.4 Usage: ear-hanging type Whether or double ear: bilateral stereo Battery life: 4-8 hours (hours) performance: life Material: PC + ABS Package list: 1 * headset 1 * data line 1 * manual