Features:
Bluetooth version: Bluetooth V3.0
Transmission power: Class 2
Transmission distance: up to 10m
Support multiple paired, allows a speakerphone connect to two phones.
Integrated with echo and noise cancellation
Built in speaker and microphone
Internal battery can be charged  through the original USB cable.
Support the specification: HSP and HFP protocol
Talking time: 10hours
Standby time: 6000h
Charging time: 2 hours
Charging voltage: DC 5-5.5V
Working temperature: range angle 0-60

Package included:
1 x Speakerphone
1 x Car charger
1 x USB cable
1 x User manual