1、[Bone Conduction Technology] Experience clear music without wearing headphones. The pillow speaker uses bone conduction and adaptive noise reduction technology, ensuring no disturbance to family members. 2、[Health Sleep Aid] Designed for better sleep quality, this pillow speaker is suitable for adults and babies, helps to improve sleep and relaxation, whether for napping or night time sleep. 3、[Dual Modes] Switch freely between Bluetooth and small memory card mode. The built in 32GB small memory card allows you to play your favorite content without connecting to other devices, and can also be used as a USB flash drive when connected to a computer. 4、[Long Battery Life] With a 400mAh battery, this speaker can run continuously for up to 15 hours when fully charged, the longest standby time is up to 150 days. You can set sleep mode, increase or decrease in increments of 5 minutes to set the shutdown time. 5、[Easy to Use] Equipped with the latest Bluetooth 5.3 chip, the pillow speaker can effectively connect within 10 meters, with low power consumption, no latency. Designed with LED display for real time battery checking, and convenient USB C charging, enhancing user experience. Item Type: Bluetooth Pillow Speaker Material: Aluminum Alloy Model: QY09 Charging Mode: Type C Standby Time: 150 Days Bluetooth Version: 5.3 Working Voltage: 3.1-4.2V Built in Memory: 32GB (Built in Memory Card) Size: Approx. 103x28.5x14mm / 4.06x1.12x0.55in Built in Battery Protective Board: 400mAh Lithium Polymer (Built in Battery) Transmit Distance: 10 Meters (Unobstructed) 1 x Bluetooth Pillow Speaker 1 x USB C Cable 1 x User Manual