E89 Transparent Cool Wireless Bluetooth Headphones Earplugs Black Technology TWS E sports Trendy Game Headphones

Model: E89Bluetooth version: 5.3+EDRFrequency response: 20Hz-20KHzSensitivity: -42dB±2dBMusic time: about 4-5H (80%) volumeHeadphone battery capacity: 30mAhCharging compartment battery capacity: 250mAhBluetooth transmission distance: ≥10MCharging interface: Type-cSpeaker unit: 6MM