Karaoke Machine Stereo RGB Light Portable Bluetooth Speaker with 1 Microphone for Home Party White Item Type: Karaoke Machine Material: Plastic, Electronics Speaker Size: Approx. 8 x 8 x 8.5cm / 3.1 x 3.1 x 3.3in Microphone Size: Approx. 13.5 x 3 x 3cm / 5.3 x 1.2 x 1.2in Speaker BT Version: BT 5.3 Speaker Horn Diameter: Approx. 57mm/2.24in Speaker Horn Power: 6W Speaker Working Voltage: 3.7V Speaker Frequency Range: 20Hz-20KHz Speaker Reverb: Aftersound Effect Reverb Speaker Charging Time: 3.5 to 4 Hours Memory Card Slot: Speaker Memory Card Slot Supports Up to 512G Storage (Not Included) Microphone Charging Time: About 2.5 Hours Battery Type: Speaker Built in 1200mAh, Microphone Built in 400mAh Polymer Lithium Battery (Included)