Main Features: 

- Compatible with All iPhones, Samsung, HTC, Sony, Huawei, etc. All Bluetooth enable Smart Phones. 
- Bluetooth 4.1+EDR technology
- With audio decode technology, offering you perfect sound
- Mini and fashionable design
- Sweatproof Sport Silicone Earcap Design, the best choice for sports, and it can be removed. 
- Long standy time and talking time
- Built-in rechargeable battery, allows talk time for 8 hours and up to 175 hours of standby time
- It ensures a more natural and clearer audio experience
- Control music and calls from the headphone
- Allow you answer the phone anytime and anywhere
- Suitable for all Bluetooth enabled devices

Specification:

Bluetooth 4.1+ EDR
Stereo Bluetooth Headset, A2DP, AVRCP;
Amplifier output power: RMS 2x18MW (THD = 10%)
Power Amplifier SNR: ≥90dB
Input voltage: 3.7V rechargeable lithium battery
Playing time: 3-4 hours
Talk time: 4-5 hours
Charging time: 1-2 hours
Charging Input voltage: DC5V 500MAH
Speaker Specifications: 2x16Ω 20MW Φ10mm
Frequency range: 20Hz-20KHz
Sensitivity: ≥100db ± 2db
SNR: ≥80Db transmit / receive frequency: 2.4 --- 2.48GHz
Distance:  Maximum 10 m Accessible

Instructions:

1. Power: Press the power button for 2-3 seconds, along with red and blue lights, boot into the back even state
2. Power Pairing: Press the power button for 5-6 seconds, along with red and blue lights, after flashing red and blue alternately into pairing mode
3. VOL +: Press the volume + button for 2 seconds, add up the volume a maximum sound, a warning sound
4. VOL-: Press Volume - button for 2 seconds, cut down the volume a minimum sound, a warning sound
5. Previous: Press VOL+
6. Next: Press VOL-
7. Telephone Answering: when to call, press the power button
8. Refused to answer: when to call, press the power button for 2 seconds
9. Redial last telephone number: double-click on the standby power button
10. Charging: red light when charging, fully blue lights

Package Includes:

1 x Bluetooth Earphone