Product details:

Motorcycle Helmet Intercom Feature 1)Power detection function, low power notification: Recorded voice message will tell you. Power over 90%, power over 50%, power below 50%, power below 10% please charge immediately. Can be used while charging to ensure long-distance travel. 2) Crystal clear sound quality - Adopts 30mm speaker providing a high quality full range of sounds - Adopts CVC tech reduces noise for both incoming and outgoing audio. 3) Bluetooth communication protocol: HSP, HFP, A2DP, AVRCP, SPP, CVC Driving distance: 500 meters (for two riders), 2000 meters (for groups) 4) Excellent design: Like the concave-convex interface suitable for blind operation. For hands-free calls, One button to answer/hangup/refuse/redial calls . For enjoy music, Easy to play / pause / back / continue 5) Full duplex 8-way intercom group with self-healing technology. If one rider leaves group less than 5 minuts, can rejoin riding group seamlessly. If more than 5 minuts, just one-button to rejoin and stay connection easily. Motorcycle Headset Specification - Bluetooth Version: 4.1 - Battery Type: Rechargeable lithium polymer 900mAh - Standby Time: About One Week - Operating Time: 20 hours - Charging Time: 3 hours - Power Adaptor: DC5V 500mA Motorcycle Interphone Package included 2 × M1-S Pro 2 × Speaker and Hard microphone 2 × Soft microphone 2 × 2.5mm to 3.