Wireless speaker can bring you amazingly rich audio and clear sound due to its 5W full-range speakers and a hidden passive radiator at the bottom.With mini design and surging bass, it can satisfy you and your family and friends to enjoy music at parties and gatherings.It is made of ABS material, which is solid and durable. Sound box will automatically reconnect to the last used device.The length of this product is 5.9cm, the width is 5.9cm and the height is 5.3cm.It is universal for mobile phone and computer. Bluetooth-compatible 4.1 technology allows you connect instantly to your smartphone or tablet from up to 33 feet away.Item Name: SpeakerMaterial: ABSColor: Black, White, BlueBattery Capacity: 300mAh (Included)Use Time: 2-3HCharging Time: 1.5HInput: DC 5V/400mAFrequency Response Range: 200Hz-20KHzSignal to Noise Ratio: ≥70dbConnection Mode: Bluetooth-compatible ConnectionBluetooth-compatible Range: 10MFeatures: Mini, Simple, RoundSize Details: 5.9cm x 5.9cm x 5.3cm/2.32" x 2.32" x 2.09" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Speaker1 x USB Charging Cable1 x User Manual