Description: This unilateral ear Bluetooth hands-free headset provides you with a quiet and comfortable listening experience. Specially designed with in-ear style, giving you ultimate comfort and fit. Stylish design and advanced technology, you will be cool and fashion once worn it. VC 6.0 noise reduction, clear conversation while emancipating your hands while maintaining maximum comfort while looking good. Features: Play music, music switch. Chinese and English voice switching. Voice broadcast the number of incoming phone. The last number redialing. Operate voice prompts. IOS system shows the power. Support WeChat, car navigation, QQ voice and other software. Specification: Color: Black, White (Optional) Bluetooth Version: Bluetooth 4.1 Bluetooth Protocol: A2DP AVRCP HFP HSP Battery: 3.7V 55mAh Charging Power: 5V / 80mAh Sensitivity: 103db +/- 3dB Impedance: 32Mw Transmission Distance: Up to 10m Frequency: 2.4GHZ Talk Time: About 3hours Songs Time: About 2.5hours Standby Time: About15 hours Size: 50 x 14 x 7mm / 1.97 x 0.55 x 0.28inch Package Weight: 19g Quantity: 1pc Package included: 1 x Single-Ear Bluetooth Headset 1 x Earphone Cap 1 x USB Charging Cable 1 x Earphone Hook 1 x User Manual 1、Play music, music switch. Chinese and English voice switching. 2、Voice broadcast the number of incoming phone. 3、The last number redialing. Operate voice prompts. 4、IOS system shows the power. 5、Support WeChat, car navigation, QQ voice and other software.