Product Features
Compatible with Bluetooth V3.0 specification standards. Use advanced CSR Bluetooth chip.
Comfortable to wear sports / outdoor use
Output power: Class 2 power output, up to 10 meters
Built-in DSP (digital signal processing) noise suppression and echo cancellation function.
Battery Type: Lithium-Ion battery, 3.7V / 85mAh, Talking time: 5 hours, Music play time: 4.5hours, Standby time: up to 150hours, Charging time: 1 to 2 hours.
Support HSP, HFP1.5 Bluetooth protocol specification 
Support for multiple paired devices, which can match up to 8 Bluetooth devices

Product Specifications
Compatible Bluetooth specification: V3.0
Working frequency: 2.4GHz ~ 2.48GHz
Battery type: 3.7V / 85mAh (rechargeable lithium-polymer)
Talk time: about 5 hours
Music Play time: 4.5 hours
Standby time: about 150 hours
Charging voltage: 5V/300 mA

Support Accessories
USB charging cable
USB Travel Charger (optional)
USB car charger (optional)
Manual: 1pc
Warranty Card: 1pc
Package Type: Each pc into gift box, then Master carton.