Sena 5R Bluetooth Headset For the simple Bluetooth system that connects to one other rider, the Sena 5R will cover all the bases. Hands free communication, LCD screen and a 2-way HD intercom are just a few key features for this system. Conveniently access the Sena app to control a variety of functions or access music, GPS and phone calls hands-free while riding. The 5R connects to any Bluetooth intercoms equipped by Sena or Sena powered devices and features a working distance of up to 700 meters. Features: Two-way intercom HD intercom Bluetooth 5.1 Headset Profile (Hsp) Hands-Free Profile (Hfp) Advanced Audio Distribution Profile (A2Dp) Audio Video Remote Control Profile (Avrcp) HD speakers Noise Cancellation: Advanced Noise Control Codec: Built-in SBC Codec LCD display Multi-language voice prompts Sena smartphone apps Working Distance: up to 700 m (760 yards) in open terrain Supports up to: 2 riders Talk time: 16 hours Charging time: 2.5 hours Type: Lithium Polymer Battery Dimensions: Main module: 76 mm x 41 mm x 27 mm (3 in x 1.6 in x 1.1 in) Speaker driver unit: 40 mm thickness 7.3 mm Boom microphone: length 150 mm Wire between speakers: length 510 mm Weight: main module - 42 g (1.48 oz)