Eye Mask Sleep Headphones Bluetooth Sleeping Headphones Bluetooth Headband Soft Elastic Comfortable Wireless Music Earphones

Eye Mask Sleep Headphones Bluetooth Sleeping Headphones Bluetooth Headband Soft Elastic Comfortable Wireless Music Earphones

Bluetooth parameters:Bluetooth version: 5.0Bluetooth protocol: AGHSPBluetooth solution: Blue messageBluetooth transmission distance: 10 metersHeadphone channel: Stereo (2.0)Music playback time: maximum sound 7H, medium volume 10 hoursMicrophone distance: 1 meterBluetooth standby time: 72HBattery capacity: 180ma/hBattery power: 0.55WHorn impedance: 32 ohmsHorn power: 0.02WFrequency range: 2.4-2.4835GHzSensitivity: 45dBTransmission power: 6dBAudio output distortion: 0.6%Audio output signal-to-noise ratio: 93dBCharging time: 1-2 hoursMaximum input voltage: DC 5VMaximum input current: 150mahMaximum input power: 0.55W