Conduction Sleep Speaker Sleep without Ear Pressure Conduction Sleep Bluetooth Headset Sleeping Dreamboat Specification: Product Name: Sleep Speaker Product colour: White Package size: 18.5x7.5x3.5cm/7.09x2.95x1.38inch Product size:15.5X3.6X1.2cm/6.10x1.42x0.47inch Gross Weight:0.34lbs/156.7g Net Weight:0.13lbs/60g Bluetooth version: V5.0 Transmission distance: 10m Operating voltage: 3.7V-4.2V Battery capacity: 400 mAh Play time: 20 hours Charging time: 2 hours Charging method: TYPE-C charging Support Bluetooth AVRCP1.4,A2DP1.2,HFP1.6,HSP1.2 Features: B/ONE conduction technology for music transmission without damaging the eardrums Simply place the B/ONE Conduction Sleeper under your Pillows and turn it on to enjoy soft music and improve the quality of your sleep. Place it under your Pillows and enjoy, without the person on your Pillows being disturbed' and enjoy your own musical feast 5.0 Bluetooth chip, intelligent noise reduction, basically 0 latency, farther connection distance, more stable Powerful power, 20 hours of music playback, small size, big energy 400mAh,-long standby Memory pairing, automatic second connection, second pairing (remember the last connection status) ) Package Include: 1x Sleeper Speaker 1x Specification 1x Pair of Earbuds