The Albrecht BPA 400 is a headset for connecting Bluetooth-enabled navigation systems, cell phones, MP3 players, etc. The headphones and microphone are clipped into the helmet and connected with the waterproof plug. The transmitter unit can be attached to the helmet using an adhesive holder. Then simply pair the BPA 400 with a Bluetooth-enabled device and off you go! Technical data: 2 parallel Bluetooth connections to telephone, navigation system, MP3 player, etc. HiFi earphones with excellent sound and good bass Removable earphones and microphone (e.g. for one-sided listening) Easy helmet mounting using adhesive mount Supports smartphones with voice control (Siri/Ok Google) Bluetooth 4.0 Operating time approx. 8 hours Charging time 2.5 hours Operation possible while charging Integrated 200mAh battery Intercom with passenger possible using optional cable Dimensions: 75x22x14mm Weight: 40g Scope of delivery: BPA 400 Bluetooth unit, HiFi earphones for motorcycle helmet, gooseneck microphone, adhesive mount, replacement adhesive pads, USB charging cable, instructions