Feature: 1. Superior Sound Quality: Karaoke machine support 360 degree surround sound, 2.2 inch speakers with large diaphragm, treble is bright and transparent, midrange is clear and dynamic, bass is deep and powerful. 2. Karaoke Function: Portable bluetooth speaker supports wireless karaoke, comes with reverb, KTV level surround sound, comes with five kinds of karaoke sound effects, make singing become fun. 3. RGB Light: portable bluetooth speaker has 9 kinds of 16.8 million colors, with RGB light switching, the artistic sense of the LED dazzling light flashes in seven colors, exudes a fashionable and cool ambient, so that your entertainment and games with more sense. 4. Long Battery Life: Karaoke machine with 57mm 4 ohm 5 watt speakers, with 1800 mAh high capacity lithium battery, let you listen to songs anytime and anywhere. 5. High Performance: Karaoke machine adopts advanced chip, low power consumption, high sensitivity, strong anti jamming, no frequency break, ultra long reception distance. Specification: Item Type: Karaoke Machine Material: Plastic, Electronics Speaker Model: K16 Speaker Bluetooth Version: 5.3 Speaker Power: 5W Speaker Diameter: Approx. 57mm/2.24in Speaker Frequency Range: 20Hz-20KHz Speaker Operating Voltage: 3.7V Memory Card: Support up to 128GB Memory Card (Not Included) Microphone: 2.4G Wireless Transmission Pickup: Back Pole Type Condenser Microphone Microphone Operating Voltage: 3.7V Battery Type: Speaker Built In 1800mAh x 1, Microphone Built In 400mAh x 2 Lithium Polymer Battery (Included). Package List: 1 x Bluetooth Speaker2 x Microphone1 x Charging Cable1 x Instruction Manual