New Bone-Conduction Speaker Suboccipital Sleep Speaker Sleep Promotion Intelligent Noise Reduction Wireless Mini Bluetooth Speaker Headset Pluggable TF-card Feature: Product type: Bone-Conduction Sleep Promoting Speaker Material: ABS Product color: Black Product size: 15.5x3.6x1.1cm/6.1x1.42x0.43in Packing size: 18.5x7.5x3cm/7.28x2.95x1.18in Gross weight: 160g/0.34lb Speaker Power:4W Number of speakers: 2 Expanded memory: max 32G (not included) Interface type: type-C Bluetooth version: 5.0 Duration: 8-12 hours rating: Not Battery capacity: 400mAh Description: Are you worried about your worries? Are you unable to sleep for trifles? Then this bone-conduction Bluetooth headset must be your blessing, and your problems will be solved. Customized for bedtime comfort, the bone-conduction 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, and it will not disturb the of the family if it is not put outside A new generation of Bluetooth chips, use of the new Bluetooth 5.0 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 400mAh battery, powerful upgrade of battery life, 10 hours of music playback at full-power, 300 hours of standby battery life, accompany you to sleep all night No injury to the ear, no burden, no sleep, bone-conduction mini music speaker, nap in the daytime: music can block the noise and enjoy the nap, sleep in the evening: music or can relieve the tired mood in the daytime and sleep faster,The baby can use it without hurting the ear. The baby's bedtime story can also be handed to me Package Included: 1xBone-Conduction Speaker 1xUSB charging cable 1xInstructions