Bone Conduction Bluetooth Speaker Under Pillow MusicBox Wireless Stereo Soundbar TF MP3 Player Improves Sleep

Description: Bone Conduction: This under-pillow speaker can transfer audio through the bone, so it won't easily disturb others while working Long working time: Built-in large capacity polymer battery, this wireless loudspeaker can provide 20 hours of music playing time and has 300 hours of standby time Easy to connect: Supports Bluetooth 5.0 compatibility, this under pillow subwoofer is easy to connect with most types of phones and tablets Auto Power Off: This bone conduction wireless speaker will turn off automatically after 30 minutes, so you don't need to turn it off manually while sleeping Other function: This under pillow sound box supports a memory card, which allows you to play MP3 music directly from the memory card Specification: Bluetooth-Compatible: Version 5.0 Charging voltage: 5V Battery capacity: 400mA Operating Voltage: 3.7-4.2V Charging Time: Approximately 2 hours Bluetooth-Compatible Distance: 10m Size: Length 6.1 inches * Width 1.4 inches * Height 0.4 inches Packing List 1 * Speaker 1 *manual 1 *Charging cable The No retail package!!!