The excellent design of our karaoke microphone fits perfectly in your hand, which can make you feel more comfortable. It also has a built-in high-quality Bluetooth module, which can be used for calls and FM, and is compatible with various singing applications. The multi-function button can easily switch between different modes, adjust the volume, sing and play music. With echo mode, our karaoke microphone brings an immersive feeling to your surroundings. The USB port allows you to plug in a USB, turn this magic piece into an MP3, and play it directly Color: as shown in the picture Material: Aluminum alloy Charging voltage: DC 5V Charging time: 2 hours Singing time: up to 5-10 hours Battery capacity: 1800mAh Transmission distance: 10m (32.8 feet) Package includes: 1 x Karaoke singing microphone