White Noise Bluetooth Sleep Eye Mask

Product information: Bluetooth specification: V5.2+EDR/HSP/A2DP/AVRCP/HFP Frequency range: 2.4026GHz-2.480GHz Transmission distance: 20m Sound channel: stereo Speaker parameters: 32 ohm/30mm Speaker power: 10 mW*2 Signal-to-noise ratio: 105dB Function: Previous song, next song, volume up, volume down, play, pause, answer phone, make call, activate SIRI, microphone call Battery: 300mAh (with over-current, over-voltage, over-charge, over-discharge protection board) Playback time: 15 hours Charging time: about 2 hours Features: Built-in 20 white noise and 4 sleep music, the market can not find more than the number of our white noise!!! The use of high-quality white magnetic speakers, super shocking bass effect, than the market with black magnetic speaker sound bigger and better sound quality! 300mAh full-capacity battery, without white noise version to ensure 35 hours of continuous music playback, white noise version to ensure 15 hours