K21 Wireless Bluetooth 4.1 Business Earphone 300mAh Super Long Standby with Mic
Regular price£66.63Sale price£19.99
K21 Wireless Bluetooth 4.1 Business Earphone 300mAh Super Long Standby with Mic, Sweatproof, Noise Reduction, Mute Switch for Cell Phone, Skype, Truck Driver,Office,Sport
Product parameters Product Model: K21 Bluetooth Version：V4.1 Working radius: 33ft Charging time:about 2.5 hours Listening to music time: About 24 hours Talk time :About 32 hours The Standby time: About 70 days Battery Capacity: 300mAh Package Contents: 1 × Bluetooth Earphones 2 × Ear Cap 1 × USB Charging Cable 1 × Manual Which functions does the product have? 1.Long endurance 2.Connect 2 devices at the same time. 3.Wear left and right ears. 4.smart switch up and down. 5.Answer/hang up /reject. 6.Telegraph number. Bluetooth signal distance? The Bluetooth signals have an effective distance of 33ft. However,you are expected to use the product within a distance of 9.8ft to 16ft, because the wireless signals transmitted by mobile phones will suffer decline,loss or interference in long-distance transmission and result in discontinuous sounds,a poor sound effect or disconnection(the product will try for re-connection when it is in the effective distance again) .