Sena – SF4 HD Headset and Intercom

Sena - SF4 HD Headset and Intercom
Designed for communication with another rider, the SF2 Bluetooth Communication System provides a 2-way intercom communication system, working up to 880 yards (800m) away! Smartphone connectivity allows for music streaming, taking/making phone calls, and hearing GPS directions. WIth Sena's Audio Overlay™ feature, listen to music AND still use the intercom at the same time. In addition, the Quick Charging feature allows for 4 hours of use in only 30 minutes of charging. Don't wait around, get out there and ride!

Headset Features:
General:

Talk time: 13 hours 
Operating temperature: 14°F-131°F
Weight: main module 1.23 oz (35g)

Intercom:

Working distance: up to 0,8 miles (1.2 km) in open terrain
Supports up to 4 riders
Bluetooth:

Bluetooth 4.1
Headset Profile (HSP)
Hands-Free Profile (HFP)
Advanced Audio Distribution Profile (AD2P)
Audio Video Remote Control Profile (AVRCP)

Audio:

Noise Cancellation: Advanced Noise Control™
Codec: Built-in SBC Codec
FM Radio: frequency specs: 76 - 108MHz

Battery:

Charging time: 1.5 hours
Quick Charge: 30 minutes of charging equals 4 hours intercom
Lithium Polymer Battery