1、WIRELESS BLUETOOTH CONNECTIVITY: This pillow speaker features Bluetooth wireless connectivity, allowing users to easily pair with smartphones, tablets, and other devices to effortlessly play soothing music or white noise anytime, enhancing sleep quality. 2、SLIM AND DISCREET DESIGN: Its lightweight and slim design allows for easy placement under pillows, making it ideal for side sleepers. It doesn't interfere with sleep posture while ensuring comfort throughout the night. 3、COMFORTABLE SOUND QUALITY: Equipped with clear sound quality speakers, this pillow speaker delivers clear and soothing sound, effectively aiding sleep and helping users fall asleep faster while improving overall sleep quality. 4、MULTIFUNCTIONAL USAGE: This versatile under pillow speaker is not just for sleep; it's also ideal for reading, meditating, or relaxing, providing users with enjoyable sound experiences in various settings. 5、LONG LASTING BATTERY LIFE: Featuring a high performance battery, this speaker offers around 20 hours of continuous use on a single charge, eliminating the hassle of frequent recharging and allowing users to fully enjoy peaceful nights.Item Type: Sleep Aid DeviceMaterial: ABSCharging Time: 3 hoursPlayback Time: 20 hoursBluetooth Protocol: A2DP, AVRCP, HSPModel: ZS-01Bluetooth Version: 5.1Bluetooth Name: for Z-sleep1 x Sleep Aid Device1 x USB Cable1 x User Manual