Bone Conduction Technology - Enhanced Audio Experience: Enjoy your audio privately with our bluetooth pillow speaker that without disturbing your partner,experience immersive audio with dual bone conduction speakers that deliver high-quality sound while preserving your hearing health. 20-Hour Rechargeable Battery for All-Night Use: Our pillow speaker stay entertained or yourself to sleep with 20 hours of continuous , perfect for long nights or travel. TF Card Slot for Versatile Playback: Play audio directly from a TF card when you don't want to or can't use Bluetooth,under pillow speaker offering more freedom and flexibility in how you listen. Bluetooth 5.2 for Seamless Wireless Connection: bluetooth pillow speaker for sleeping connect to your devices effortlessly with the latest Bluetooth 5.2 technology, ensuring a stable and high-quality wireless audio experience. Sleep Timer to Customize Your Rest: under pillow speaker bluetooth can set the sleep timer to turn off the pillow speaker after a set period, helping you fall asleep to your favorite sounds without wasting battery. Color: Gray White Material: ABS Package Contents: 1 x Bone Conduction Pillow Speaker 1 x USB Cable 1 x Instructions in Chinese and English Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.