GENERAL
Talk time: 10 hours
Operating temperature: -10˚C – 55˚C (14°F – 131°F)
Speaker Driver Unit: 40 mm – thickness 6.5 mm
Dimensions: Main Module - 70.7 mm x 36.6 mm x 13.7 mm (2.8 in x 1.4 in x 0.5 in) 
Weight: Main Module - 22 g (0.78 oz)
BLUETOOTH
Bluetooth 4.1
Headset Profile (HSP)
Hands-Free Profile (HFP)
Advanced Audio Distribution Profile (A2DP)
Audio Video Remote Control Profile (AVRCP)
INTERCOM
Working distance: up to 900 m (980 yds) in open terrain
Supports up to 4 riders
AUDIO
Noise Cancellation: Advanced Noise Control™
Codec: Built-in SBC Codec
FM Radio:
Radio frequency specifications: 76 ~ 108MHz
10 preset station memory
BATTERY
Charging time: 3 hours
Type: Lithium Polymer Battery
CERTIFICATES
CE, FCC, IC