Features: 1.PURIFY THE AIR: The multimedia projector salt lamp can release natural negative ions to purify the air and create a healthy indoor environment. 2.WARM AMBIENCE: Projector salt night light can create a warm ambience, to meet your needs for a comfortable environment. 3.SPEAKER FUNCTION: This projection salt light is also a Bluetooth speaker, you can play your favorite song list and enjoy the music time quietly. 4.DECORATIVE: Projection salt lamp is a blend of natural and modern design, also a home decoration, enjoy the warmth and tranquility of nature. 5.APPLICATION SCENES: Projector speaker salt lamp is suitable for bedroom, living room, nursery, playroom, office and other places. specification:Item Type: Projector Salt Lamp Material: ABS, PC, Electronic Components, Salt Stone Rated Voltage: DC 5V Operating Current: 1.5A Power: 10W Charging Time: About 3H Use Time: About 8H Battery Type: Host Built in 2000mAh Lithium Battery, Remote Control Built in 210mAh Button Battery PackageList:1 x ProjectorSaltLamp 1 x Charging Cable 1 x Package of Salt Stone 1 x Remote Control 1 x Instruction Manual