Features: Brand-new game decoder chip, 15-meter uninterrupted connection, strong anti-interference game mode, the signal is more concentrated and stronger. High-definition sound quality sound unit, deep analysis of sound quality, with polymer biological diaphragm, listen to the sound of nature. With noise cancellation and good RF and EM suppression performance, high sensitivity, and enhance the call experience. The new Bluetooth 5.0 dual-mode master-slave switching technology, both sides are the master headset, and the single- and dual-ear mode seamlessly switches, and the experience is non-stop. With ergonomic in-ear design, Bluetooth earphone is comfortable and painless to wear. Bluetooth earphone has the functions of 9D stereo sound, HD calls, LED digital display, low latency, noise reduction, long battery life and strong compatibility. Specification: Bluetooth version: 5.0 Support protocol: L2CAP/A2DP1.2(AVCTP1.3/AVDTP1.2/AVRCP1.3) Charging interface/voltage: Type C Headphone battery capacity: 30mAH Charging box battery capacity: 300mAH Bare metal size: 52*48.5*25MM Package:1*Bluetooth headset1*charging cable1*Instruction