Feature:Bone conduction is a way of transmitting sound by sending sounds to mechanical vibrations of different frequencies. The sound waves are emitted and transmitted through human skulls, bone labyrinths, lymphatics of the inner ear, spirals, auditory nerves and auditory centers. Compared with the traditional sound propagation of sound waves through the diaphragm, bone conduction eliminates many sound transmission steps to achieve a clear sound reduction in a noisy environment, and sound waves do not affect other sounds.Bone conduction technology is used in military and police professional headphones. Also used in hearing aids, sports headphones and other fields.Product specification:Bluetooth version: BT4.1Transmission distance: more than 10 metersFrequency response range: 50Hz ~ 20KHzUnder normal temperature and full power: sustainable playback for 6 hours; standby for about 10 daysCharging time: 2 hoursBattery Type: Lithium BatteryBattery capacity: 150mAhWaterproof rating: IP66NFC connection: support
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