The package includes: 1/2 x Microphone 1 USB receiver 1 x 3.5mm audio cable 1 x 3.5mm to 6.35mm adapter Specification: Model: V10 VHF frequency range: 200MHz-270MHz Model: V20 UHF frequency range: 700MHz-800MHz Colour: Black Material: plastic + metal Microphone size: about 24.5x5cm Audio cable length: about 60cm USB receiver size: 8x2.5cm Audio frequency response: 40Hz-15KHz Audio dynamic range: >100dB Audio output: 0-200mv Receiving distance: 80M Transmitter working current: <80mA Power: 2 AA batteries (not included) Working temperature: -10 - 50 Accessories: Compatible with all devices with a wired microphone interface. feature: - Using UHF technology, long-distance wireless transmission, easier operation, no need for annoying wires, and a transmission distance of 80m can be achieved. Wider frequency range, less interference, easy to perfect your sound - Captures rich, full-bodied sound from the source directly in front of the microphone with tight, full electronic control. Suitable for all events such as karaoke, live performances, conferences, churches, schools, halls, parties, etc. - Can be used with 3.5mm and 6.35mm female interface devices. - Power the USB receiver via USB charger, powbank, etc. - Suitable for recording studio/karaoke/radio/etc. - Suitable for teacher guidance, singing, speech conferences, etc. The package includes: 1/2 x Microphone 1 USB receiver 1 x 3.5mm audio cable 1 x 3.5mm to 6.35mm adapter