Sena Expand Bluetooth Headset

* 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