Description:Transmission range: 15 metersFunctions: Waterproof, noise reduction, bone conduction, breathing light, long battery life, call function, NFC function, voiceControl, music support, sleep mode, low latency games, othersBt compliant protocol: 5.3How to use: In-earBattery life: more than 8 hours (hours)Specifications:1.Bingchu wonderful sound, transparent version of true wireless Bt compatible headset2. Pure sound quality, in line with ergonomics, comfortable to wear for a long time, helping you explore the music world3. light weight and stress free, light weight reduces ear burden, suitable for travel, commuting and home use4. Professional audio decoding technology to preserve pure music details5.Seamless switching between single and double ears, just take one and listenIncluded in the Package:1 * Bt compatible headset set