Fast Bluetooth Wireless Connectivity: Bluetooth 5.3 connection, much faster pairing and stable performance Litsten to Music Easily: 10 meters wireless transmission distance, free from wire constraints Powerful Diver: Built-in 40mm powerful driver units are built in in the headset for super bass sound quality and better hearing experience Comfortable to Wear: The soft earpads will not give you strong pressure when listening to music or playing games Easy to Carry: It's lightweight and compact, convenient to put into your bag for storage and carrying Specification: Bluetooth version: 5.3 Chip type: Bluetrum (model: 5605B) Battery type: polymer lithium battery Function: Bluetooth, AUX (3.5mm round hole), card (TF, card not included), FM (FM function, press and hold two buttons at the same time to switch) Buttons: Left round knob button: single press: pause/play Rotate to adjust the volume: turn left (lower) turn right (increase) Press twice: next song Press three times: previous song Right button: power on/off Battery capacity: 350 mAh, with protection board Charging time: about 2 hours Usage time: about 10-12 hours Standby time: about 150 hours Speaker: 40mm large dynamic coil Charging port: Type-C Transmission distance: barrier-free connection within 10 meters Transmission power: 5V 1A Speaker sensitivity: 113±3dB Frequency range: 20-20000Hz Signal-to-noise ratio: 88dB Impedance value: 32Ω Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.