・【Bone Conduction Technology】Innovative bone conduction speaker designed for under-pillow use,delivering soothing audio without disturbing others or causing ear discomfort. ・【Versatile Playback Options】Supports both Bluetooth-compatible and TF card modes,offering flexibility in audio source selection for a personalized sleep experience. ・【Built-in White Noise】Comes pre-loaded with white noise sleep-inducing music to help you fall asleep faster and improve sleep quality. ・【Long Battery Life】Enjoy up to 20 hours of playtime at 80% volume,ensuring uninterrupted audio throughout the night. ・【Compact and Portable】With dimensions of 128*54*18mm,this mini wireless speaker is perfect for travel or home use,fitting comfortably under any pillow. ・【User-Friendly Design】Features multi-function buttons for easy operation and a Type-C charging port for convenient recharging. Specifications: ・Bluetooth-compatible Version:5.2 ・Transmission Range:10 meters ・Speaker Specifications:8Ω/2W*2 and 4Ω/2W ・Frequency Response:20Hz-20KHz ・Bluetooth-compatible Protocols:A2DP 1.0,AVRCP 1.5,AVDTP 1.0,AVCTP 1.4,HFP 1.5,GAVDP 1.0 ・Decoding:TF card (MP3,WMA,FLAC,APE,WAV) Bluetooth-compatible (SBC) ・TF Card Capacity:Up to 32GB ・Battery Capacity:900mAh ・Charging Time:2 hours ・Charging Current:DC5V/310mA ・Material:ABS ・Dimensions:128*54*18mm ・Playback Time:about 20H (at 80% volume) ・Standby Time:≥100 days (when powered off) ・Charging Interface:Type-C Package included: ・1 x Music Speaker ・1 x Charging Cable ・1 x English Manual