Description:
The Bluetooth single earphone comes with 2pcs 80mAh batteries, providing enough electricity when traveling or business trip. Advanced Bluetooth 4.1 technology and high-end CSR8615 chip can reduce noise and enables you to enjoy clear high-fidelity music and up to 10m / 33ft barrier-free transmission distance. Besides, the Bluetooth earphone has the function of voice prompt, number reporting, Chinese & English switch and so on. 

Features:
Comes with two 80mAh batteries, providing 6 hours talk time / music time, or 200 hours standby time. No worry about no electricity. Perfect for business trip and travel.
Built-in high-performance microphone and speaker, offering you clear stereo hands free calls.
Advanced Bluetooth 4.1 A2DP technology, saves energy, reduces noise and enables you to enjoy high quality HD high-fidelity music.
Multi-point Technology: It can simultaneously connect two smart phones. So you can seamlessly switch between your business and personal phones.    
The 2 different size silicone earbuds are comfortable and soft to wear. 
Multi-functional Button: Support voice prompt, number reporting, Chinese & English switch (press the buttons "+"&"-" at the same time), answering or ending a call with voice "yes" or "no". Supports vibration for incoming calls and last number redial.
180° rotate earphone fits both right and left ears. The electricity quantity of the earphone can be displayed on your iOS devices.

Specifications:
Bluetooth: 4.1 version
Supported file formats: A2DP 
Transmission power: 2 levels
Transmission frequency: 2.4GHz-2.48GHz
Transmission distance: About 10M / 33ft (Open space)
Charging time: 1-2 hours
Talk time: 6 hours
Standby time: 200 hours
Built-in battery: 2 * polymer A-level 80MA batteries 
Colour: Black
Package weight: 163g

Package List:
1 x Rotate Bluetooth Earphone
1 x Replacement Battery
2 x Earbud
1 x USB Charging Cable
1 x User Manual