This product is a practical wireless microphone equipment, made of materials, , stable and durable, suitable for KTV stage performances. This product is easy to operate and comfortable to use, high definition, high signal-to-noise ratio performance, wide frequency response range and low distortion can bring you a good experience, it is a very efficient and durable product. Features - Material: Aluminum alloy. - Size: About 24.00X4.50X4.50cm/9.43X1.77X1.77inch. - Wireless audio function, three playback modes: wireless, card, line in. - Microphone function: After connection, open the singing APP and sing your singing anytime and anywhere. - Can be used for conference hosting, friends gathering, stage performance. - Ear return function, can link to external high-power equipment to amplify sound effects. - Aluminum alloy material, color, display. Specification - Frequency response range: -20KHz. - Sound performance: 115db 1Khd<1%. - Distortion: <1%-2%. - Receiving distance: 10M. - Charging voltage: DV: 5V 1A. - Battery capacity: 2600mAh. - Charging time: About 4 hours. - Working time: About4-6 hours. Package list: 1 x Microphone 1 storage box 1 x Manual 1 x USB charging cable 1 x DC cable 1 x Storage mesh bag