[Original YX01]Invisible In-Ear Bluetooth 4.1 Headset | Mini Wireless Stereo Earphone with Built-In Mic | Compatible with Xiaomi, Huawei, Meizu & More | Compact & Discreet Design Audio Charging Games Water Proof Earbud Electronic Noise Brown

Features: High-fidelity sound quality, Wireless songs enjoy,Allows you to conveniently answer calls while driving Long working time after full charge without external power,Deep DPS-noise reduction microphone ensures clear call quality Invisible ear hook design: ergonomic, long-wearing, painless and skin-friendly material, comfortable and long-lasting to wear. IPX5 waterproof rating, so you no longer worry about rain and sweat, fearless and more free Stable transmission: Bluetooth 5.0, the signal is stable, the new generation of low-power Bluetooth 5.0 chip signal is more stable and faster. The 180°rotating earpiece can be worn freely. The left and right ears can be switched freely, and the adjustment angle is no longer restricted. The hard-core Bluetooth 5.0 chip rejects Freezes delay. The built-in high-resolution decoder makes the signal farther, high-speed transmission, and zero delay for playing games and watching movies. Specification: Bluetooth version: V5.0 Talk time: about 3 hours Music time: about 3 hours Charging time: about 2 hours Battery capacity: 50MAH Standby time: about 100 hours Frequency: 20Hz-20KHz The impedance is 32 ohms, the sensitivity is 85dB/mW Waterproof rating: IPX 5