Transmission frequency: 2.4GHz-2.48GHz
Transmission sound: 20Hz-20kHz
Transmission range:Below 10Hz in space place
File format supported: A2DP, AVRCP, HSP, HFP,APT-X
Speaker specification: Ø7mm 16Ω
Charging ways: power adaptor output DC5V 200mA
1. Bluetooth 4.0, transfer sound more steady, more clear in conversation.
2. Micro USB charging pot, for sports into music
3. Humanized design, accord with human body ear structure, comfortable fit
4. Designed for exercise junkies, waterproof and sweat, durable
5. Noodles wire design, not easy to twined and easy for storage.