Sena SPH10H Bluetooth Stereo Headset Intercom For Half Helmets The SPH10H is a Bluetooth Headset Intercom designed for Half Helmets. By simply attaching the SPH10H to your half helmet, you can call handsfree on your Bluetooth mobile phone and listen to stereo music by Bluetooth wirelessly, and have intercom conversations in full duplex with other users. Thanks to the latest Bluetooth v3.0 and the advanced digital processing technology, the SPH10H offers the best sound quality for both incoming and outgoing sound in its class. Also, the easy-to-access and intuitive button operations make the SPH10H a perfect companion for motorcycle riders. Features Bluetooth Specification v3.0 Bluetooth intercom up to 900 meters (980 yards) in open terrain 4-Way Conference Intercom Multipoint for Mobile Phone+GPS Voice Prompts Bluetooth stereo headset for Bluetooth audio devices such as MP3 players Bluetooth music playback control by AVRCP (Audio Video Remote Control Profile) play, pause, track forward and track back Crystal clear and natural sound quality Simple ear pad design for quick installation to half helmets Compatible with shorty helmets in the market Easy Headset Controls by versatile Jog Dial Bluetooth handsfree for Bluetooth mobile phones Water resistant for use in inclement weather 10 hours talk time, 7 days stand-by time Firmware upgradeable Peace of Mind - thanks to the 2-year warranty Specifications Talk time 10 hours Standby time 7 days Intercom working distance up to 900 meters (980 yards) in open terrain Operating temperature -10C 55C Dimensions 565 mm x 161 mm x 49 mm (22.2 in x 6.3 in x 1.9 in) Weight 116 g (4.10 oz) Profiles Headset Profile, Hand-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio Video Remote Control Profile (AVRCP) Bluetooth 2.1+EDR Built-in SBC Codec noise cancellation wind noise reduction wide volume control sample rate 48kHz (DAC) Auxiliary audio-in connection via 2.5mm jack Charging time 2.5 hours Type Lithium polymer battery Package Contents Snapfit earpad with Built-in Bluetooth Stereo Audio Cable USB Power Cable Note Helmet sold separately.