1、Can connect two HT21 speakers, allowing you to experience the music festival scene at home. 2、The bottom is equipped with powerful magnets, which can be attached to metal objects such as car refrigerators. 3、It is both a speaker and a lamp, can be used for bedside lighting, reading, camping, and night repairs. 4、The colorful light produces bright large‑area floodlights or beams to enhance the party ambience. 5、Large‑size independent subwoofer speakers can provide 360° all‑round music rhythm. 1 x Bluetooth Speaker1 x Instruction Manual1 x USB Cable Item Type: Bluetooth SpeakerMaterial: ABS+PCColor: BlackProduct Size: Approx. 8x8x9cm / 3.1x 3.1x 3.5inWeight: Approx. 291g / 10.3ozBluetooth Name: HT21Bluetooth Specification: 5.0Speaker Power: 5wBattery: Polymer lithium battery 1200mah (included)Playing Time: About 3-4 hoursBass Effect: 6D surround heavy bassFunction: 1.360 degree surround sound 2. Hands-free calling 3. TWS interconnection 4. Strong magnetic attraction at the bottom 5. Support memory card, AUX external sound input and playback.How to Use 1. Long press the on/key to turn on the speaker. 2. Mobile phone Bluetooth connection "HT21". 3. Long press the on/key to turn off the speaker.Five modes of lighting:( 1. Warm light, 2. White light camping light, 3. Colorful marquee, 4. Flowing light and color, 5. Colorful ambience light)