Specification* Bluetooth version : V4.1+EDR* Bluetooth profiles: HSP/HFP/A2DP/AVRCP * Talk Time: about 3-4hours* Standby time: about 100hours* Operation Range:10m* Charging time: Approximately 2 hours* Charging Voltage: DC 5V* Color: Black 、white* Headset size: 40*18*8 mm* Headset size: 7g* Gift box size: 102*131*47 mm* Full set weight: 76g Features* Support 2 kinds of languages for option(English、 and Chinese)* Original import chip* Can connect 2 Smartphones at the same time * Power Display on Xiaomi/Apple mobile phones * Answer/hang up calls、 enjoy music、 volume control、 voice dialing、 The latest Number Redialing * Use the advanced digital signal processing (DSP) technology * Can insert an external a headset line(universal Micro - USB charging interface) * Competitive price and high quality for mass production.* Enjoy the natural melody. High cost performance and Strongest engineer team on the same industry.* Never hurt ears.* Best choice for listening music、 watching movie、 chatting online etc.* Sells to all over the world. (Main market:Russia、 America、South America、 UK、 Europe、 Middle East) Package1*X5 Bluetooth Earphone1*USB Cable1*USB charging cableUniversal Micro-USB charging port