OBEST Motorcycle Helmet Headset, Bluetooth 5.4 Helmet Headset, 300m Dual Simplex Intercom Installation, Support Music Sharing and Call Noise Cancellation (ENC), IP56/1000mAh

[Specification] Bluetooth Version: V5.4 Waterproof Quality: IP56 Bluetooth Chip: CSR 5.4 Speaker Unit: 40mm Signal-to-Noise Ratio: 80dB Frequency: 80GHz -18KHz Polymer Lithium Battery: 3.7V/1000mAh Playtime: 25 hours (pop music) Intercom duration: 10 Duration of the music. Carrying capacity: 12 Hours Bluetooth call duration: 15 hours standby time: 270 hours Can display iOS phone battery level, support dual full-duplex intercom, support mixing, support music sharing (multiple people share music at effective distance), support call/intercom noise cancellation, no matter the mode prioritizes call mode.