Specifications:

Between two riders among six riders
Max talking range: 1200m/3937 feet between 2 riders
Max working speed: Up to 120Km/h
Battery: 850mah
Talking time: Up to 8 hours
Standby time: 100 hours
Frequency: 2.4GHz
Bluetooth Core: Bluetooth 3.0
Battery: 530 mAh Li Polymer battery
Charging time: About 3 hours
Chip brand: CSR
Power supply: AC 110V~240V
Power output: DC 5V 55~75mA

Package included:

1 x EJEAS V6 Intercom Main Unit
1 x Wired Boom Microphone
1 x USB Cable
1 x User Manual
1 x Allen Wrench
2 x Screwdrivers
1 x Metal Clamp Part
1 x Universal Helmet Clamp
1 x Microphone Sponge
2 x Foam Speaker Cover