Sena 3S

General
Dimensions:
Speaker drive unit: 23 mm – thickness 4.3 mm
Boom Microphone: length 120 mm
Wired Microphone: length 180 mm
Weight: 48 g (1.69 oz)
Operating temperature: -10˚C – 55˚C (14°F – 131°F) 
Charging temperature: 0˚C – 45˚C (32°F – 113°F)
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 400 meters (0.25 miles) in open terrain
Supports up to 2 riders
Audio
Noise Cancellation: Advanced Noise Control™
Codec: Built-in SBC Codec
Battery
Talk time: up to 8 hours
Charging time: 3 hours
Type: Lithium Polymer Battery
Certificates
CE, FCC, IC