Sena 20S Evo HD Bluetooth Communication System Single PackAn enhanced and revised communication experience – now even with HD speakers. With the 20S Evo, you’re on your way with improved intercom functionality and stability for full listening pleasure. The 20S Evo features a fixed, triangular and rigid antenna. The slim antenna design improves connection quality and stability in group intercom and provides increased range. In addition, hardware updates guarantee overall better performance.Features:innovative communication systemperfectly suited for small groupsthanks to Group Intercom, up to 7 drivers can communicate with a range of up to 2 kmprovides a clear, precise and comfortable sound quality in HDallows to listen to music, get the navi announcements or make calls at the same timeAdvance Noise Control prevents background noise and ensures clear communicationBluetooth 4.1 technology, high-quality stereo Bluetooth speakers, and Audio Multitasking for a well-rounded, clear, and immediate audio experienceSimplified operation enables quick settingsConnect devices with a simple shakeoperation by voice commands or via optionally available remote controlintuitive technology ensures safe, controlled driving by seamlessly switching between music, phone and intercom functionsall settings can be adjusted via Sena Utility appSpecifications:Bluetooth Intercom talk time: 13 hoursHD speaker as accessoryMain module dimensions: approx. 94.7 mm x 48.3 mm x 25.2 mmMicrophone length: 190 mmWeight module: 61 gFrequency range: 76 ~ 108 MHzAdvanced Noise ControlCharging time: 2.5 hoursBluetooth Intercom: range up to 2 km in open terrainSupported connections – Bluetooth Intercom: 8 driversContents:1 x Sena 20S Evo main unit1 x universal helmet clamp1 pairs of HD speakers1 x book microphone, wired1 x adhesive microphone, wired1 pair of microphone sponges1 pair of hook and loop fasteners for speakers1 pair of foam speaker covers1 pair of hook and loop fasteners for speaker covers1 x holder for boom microphone1 x hook and loop fastener for boom microphone1 x hook and loop fastener for microphone holder1 x hook and loop fastener for wired microphone1 pair of rubber pads1 pair of speaker pads, thick1 pair of speaker pads, thin1 x speaker port cover1 x glued surface mounting plate1 x audio cable, 2.5 mm to 3.5 mm1 x USB cable1 x allen wrench