3D Eye Mask, Music Playback, Sleeping Headphones with Built-in HD Speaker, Sleep Mask, Bluetooth Headphones
Bluetooth parameters: Bluetooth version: 5.0 Bluetooth protocol: AGHSP Bluetooth solution: Blue Message Bluetooth transmission distance: 10 meters Headphone channel: Stereo (2.0) Music playback time: maximum volume 7H, medium volume 10 hours Microphone distance: 1 meter Bluetooth standby time: 72H Battery capacity: 180ma/h Battery power: 0.55W Horn impedance: 32 ohms Horn power: 0.02 W Frequency range: 2.42.4835 GHz Sensitivity: 45dB Transmission power: 6dB Audio output distortion: 0.6% Audio output signal-to-noise ratio: 93 dB Charging time: 1-2 hours Maximum input voltage: DC 5V Maximum input current: 150mah Maximum input power: 0.55W
