S590B Wireless Bluetooth Headset 5.0 Binaural With Digital Display Charging Compartment Features: A 2200mAh charging bin is configured to charge the headset for 5-6 times Check the remaining power in- the charging bin and the charging progress of left and right headphones at any 10mm moving coil unit and professional- I frequency adjustment are adopted to make the sound range wider and the sound field more silicon chip integrated audio circuit has good RF and EM- performance to noise, presenting pure sound quality and clearer voice call connection, the will stop flashing, and two breathing lights are available The new generation Bluetooth 5.0, with high transmission efficiency, enables you to experience the game with lower delay during the game, and makes you immersive Life grade to avoid sweating during exercise. Sweat enters the headset and damages the internal chip Product Description: Bluetooth version 5.0 Wireless distance 10m Headphone frequency range 2.402GHZ~2.480GHZ Sensitivity≥80db Music playback is 3~4 hours Talk 4~5 hours Headphone battery capacity 60mAh Charging compartment battery capacity 2200mAh Support protocols A2DP, AVRXP, HFP, HSP Package Contents: 1 x Bluetooth earphone