SENA Headset - Bluetooth 3.0 EXPANDM-01

Headset - Bluetooth 3.0 This water-resistant Bluetooth? headset was designed to give you a stable, secure fit in any situation, Use the Expand to communicate from headset-to-headset, take hands-free phone calls, or listen to music from your smartphone, Built to be water and sweat resistant, you won*t have to think twice about keeping your Expand headset on your head as the weather rolls in, Bluetooth 3.0 technology allows for four-way intercom over a 900-meter (half mile) range, Advanced Noise Control* ensures noisy outside environments won*t interfere, and each audio source has its own volume level which can set to your preference, Expand uses the Universal Intercom* protocol, which makes your gear compatible with other brands, General, Talk time: up to 10 hours, Charging temperature: 0?C * 45?C (32?F * 113?F), Operating temperature: -10?C * 55?C (14?F * 131?F) , Dimensions: main module - 145 mm x 115 mm x 78 mm (5-11/16" x 4-1/2" x 3-1/16"), Weight: main module - 91 g (3.21 oz), Intercom, Working distance: up to 900 meters (980 yards) in open terrain, Supports up to 4 riders, Battery, Type: Lithium Polymer Battery, Charging time: 2.5 hours