Bluetooth Sleeping Headphones Eye Mask

  This comfortable sleeping mask is made to help you have the best sleep you can have. It is bluetooth and comes with built in headphones so you can play any song you need to help get a good nights rest. This product is washable and has a built in microphone for calls aswell. Bluetooth version: 5.0   Bluetooth transmission distance: 10M   Music playing time: Maximum sound 7h, medium volume 10 hours   Microphone distance: 1m   Bluetooth standby time: 72h   Battery capacity: 150mA / h   Battery power: 0.55w   Horn impedance: 32 ohm   Horn power: 0.02w   Frequency range: 2.4-2.4835ghz   Sensitivity: 45dB   Transmitting power: 6dB   Audio output distortion: 0.6%   Audio output SNR: 93dB   Charging time: 1-2 hours   Maximum input voltage: DC 5V   Maximum input current: 150mah   Maximum input power: 0.55w   Product packaging information   weight: 80g   Packaging: Bluetooth headphones, manual, charging cable, OPP bag