Bluetooth Version: V5.2

Bluetooth Protocol: HFP,HSP,A2DP,AVRCP,PBAP

Driver Diameter: 40MM

Impedance: 32Ω±15%

Sensitivity: 108±3dB

Frequency Range: 20-20Khz

Bluetooth Distance: ≥10m

S/N: ≥80dB

Distortion: ≤5% at1Khz

Working Time: 70H

Charging Time: 2-3H

Battery Capacity: 3.7V/400mAh

40mm Moving Coil Unit, Heavy Bass Sound.

Type-c Fast Charging, 2-3H Can Be Fully Charged.

Rubber Oil Surface, Skin-Friendly Texture, High-Quality PU Sponge Earmuffs.

Foldable Design For Easy-Carry.