The excellent design of our karaoke microphones is very suitable for your hand, which can make you feel more comfortable. And the built-in high-quality Bluetooth module can be used as speaker, player and Recorder, compatible with various singing applicationsMulti-function buttons, easy to switch to different modes, adjust volume, sing and play music. With echo mode,our karaoke mic can bring a surrounding immersion. And the USB port allows you to plug USB, turn this magic piece to MP3, and play it directly Feature: Bluetooth 5.0+Music playing+Conversation+FM radio Color:As show Material: Aluminium Alloy Charging Voltage: DC 5V Frequency: 100-18KHZ Charging Time: 2 hours Sing Time: Up to 4-6 hours Battery Capacity: 1800mAh Transmission Distance: 10m(32.8ft) Packing include: 1x Karaoke Singing Microphone