Note: Manual measurement, please allow some errors. Specification: Item Type: Karaoke Machine_x000D_Material: Plastic, Electronics_x000D_Speaker Size: Approx. 8 x 8 x 8.5cm / 3.1 x 3.1 x 3.3in_x000D_Microphone Size: Approx. 13.5 x 3 x 3cm / 5.3 x 1.2 x 1.2in_x000D_Speaker BT Version: BT 5.3_x000D_Speaker Horn Diameter: Approx. 57mm/2.24in_x000D_Speaker Horn Power: 6W_x000D_Speaker Working Voltage: 3.7V_x000D_Speaker Frequency Range: 20Hz-20KHz_x000D_Speaker Reverb: Aftersound Effect Reverb_x000D_Speaker Charging Time: 3.5 to 4 Hours_x000D_Memory Card Slot: Speaker Memory Card Slot Supports Up to 512G Storage (Not Included)_x000D_Microphone Charging Time: About 2.5 Hours_x000D_Battery Type: Speaker Built in 1200mAh, Microphone x 2 Built in 400mAh Polymer Lithium Battery (Included) Features: 1POWERFUL STEREO: Small speaker with dual internal magnetic horns and 3 sound generating units, completely covering 200 . The treble is crisp, the mids are powerful, and the bass is thick. 2PREMIUM SOUND: Mini karaoke machine with 2 wireless microphones, with digital processing chip, ensure that the sound better, enjoy KTV sound, suitable for work or Karaoke entertainment. 3RGB LIGHT EFFECT: Innovative design, the glazed speaker light effect into the karaoke speaker. Up to 16 independent light beads, a variety of RGB singing light effects to increase the music ambience. 4EASY TO CONNECT: Wireless karaoke machine, premium Bluetooth 5.3 chip, can be connected to TV, cell phones, simple and convenient to use, easy to enjoy the individual KTV experience. 5EXQUISITE AND FASHIONABLE: Bluetooth speaker and 2 microphone set, modern design, beautiful, small and exquisite, suitable for parties, travel, conference rooms, weddings, stages, etc. PackageList: 1 x Speaker 2 x Microphone 1 x Charging Cable 1 x Instruction Manual