Features: Wireless bluetooth-compatible connection, 360 degree surround sound effect, multifunctional combination of record speaker and led lighting, can also be used as a desktop clock ornaments. 4 types of natural sounds: seawater crash against the coasts, burning campfires, chirping birds and cicadas, flowing stream, and bringing wonderful sounds into the bedroom to improve sleep. Supports multiple playback modes including bluetooth-compatible/AUX input, memory card, and white noise. The screen is designing to closed, not dazzling at night, the screen can be awakened by gently tapping the body or shaking the desktop. Multiple scenario applications, such as sleep with companions at night, listening to music at work, chatting at parties, reading and charging, etc. Specifications: Material: ABS Color: refer to picture to selection please Size: about 142x142x65mm/5.59x5.59x2.55" Battery: 1500mAh Input: 5V1A Speaker: 40mm 4Q5W Charging time: 2-3 hours White noise playback time: 6-8 hours Bluetooth-compatible playback time: 4-6 hours Package Includes: 1pc Bluetooth-compatible Speaker note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.