Portable Bluetooth Speakers Sleep Speaker, Sleep Promotion Intelligent Noise Reduction Wireless Bluetooth Speakers Supports Scheduled Shutdown And T-flash Card 15H Battery Life, Gray Suboccipital Sleep Speaker Sleep Promotion Intelligent Noise Reduction Wireless Bluetooth Speakers Supports Scheduled Shutdown And T-flash Card 15H Battery Life Feature: Product type: Sleep Promoting Speaker Material: ABS Product color: Gray Product size: 9.0x6.0x1.2cm/3.54x2.36x0.47in Packing size: 11.7x8.8x3.1cm/4.61x3.46x1.22in Gross weight: 121g/0.27lb Speaker Power: 8¦¸/2W*2 Number of speakers: 2 Expanded memory: max 32G (not included) Interface type: type-C Bluetooth version: 5.2 Work time>15 hours(80% volume) Effective distance ?Ý 10 meters Battery capacity: 500mAh/3.7V Charging time: 2 hours Description: Are you worried about your worries? Are you unable to sleep for trifles? Then this osteoacusis Bluetooth headset must be your blessing, and your problems will be solved. Customized for bedtime comfort, the osteoacusis Bluetooth speaker can be enjoyed just by placing it under the bedside and opening it, without wearing it in the ear. It is harm-less to use it for a long time, and it will not disturb the of the family if it is not put outside A new generation of Bluetooth chips, innovative use of the new Bluetooth 5.2 chip, music calls tend to without delay and low power consumption, calls are stable and sound is clearer. mainstream APP, digital noise reduction, automatic back-connection mobile phone, effective connection within 10 meters Built-in 500mAh battery, powerful upgrade of battery life, 15 hours of music playback at fully charged, 450 hours of standby battery life, accompany you to sleep all night No injury to the ear, no burden, no sleep, osteoacusis mini music speaker, nap in the daytime: music can block the noise and enjoy the nap time, sleep in the evening: music or can relieve the tired mood in the daytime and sleep fast