Features:<br />the main function is sing and karaoke, but it also can be a bt speaker<br />in addition, you can use audio cable or connect bt to record your voice.<Br />can connect with all bt devices within 10m without obstacle.<Br />use 3-layer noise reduction technology that filters air flowing and wind noise effectively<br />two channel stereo headphones produces a more stunning ktv live-sound.<Br />it can alter the sound and change the volume, different control of bring endless fun.<Br />support for external tf cards(not included) and usb port. <Br />mini home ktv for music playing and singing at any time.<Br />it&#39;s fantastic for your family gatherings, birthday parties, outdoor activities and musical instrument recording.<Br/>specifications:<br />material: abs &amp; aluminium alloy<br />color: pink; gold; blue; black; rose red(optional)<br />input: dc5v<br />power: 5w<br />frequency: 100hz-10khz<br />bt protocol: btt4.1<Br />bt distance: 10m / 32.8Ft<br />battery: built-in 3v/1200mah lithium<br />item size: 221 * 62 * 76mm / 8.7 * 2.44 * 2.99In<br />package weight: 377g / 13.3Ounce<br />package size: 250 * 85 * 80mm / 9.84 * 3.35 * 3.15In<br/>packing list:<br />1 * microphone<br />1 * usb cable<br />1 * audio cable<br />1 * user manual