#Product Description Frequency range: UHF 730-769MHz Frequency width: 40MHz Frequency mode: Digital Max Frequency deviation: ±48KHz Frequency Response: 30Hz-20KHz S/N: ≥95dB Distortion: ≤0.01% Work Temperature: 10-55C Work Range: 50M (Normally) Mic Connectivity: UHF (Wireless) Warranty Period: 1 Year Mic Types: Handheld Microphone Highlights: True to Real Human Voice Enjoy The Most Beautiful Music The Most Extraordinary Experience Of Singing A High Level of Convenience and Flexibility Move unimpeded when performing without loss of sound quality. Convenient And Easy to Use Plug and play solution for easy setup UHF (ultra high frequency) Systems Selectable UHF frequencies for interference-free performance Wireless Dynamic Microphone Clear, transparent audio with full frequency response #What’s in the box: 4xAA battery 2 x Microphone 1 x 18650 Lithium Battery 1 x USB charging cable 1 x User Manual 2 x Mic foam 2 x anti-rolling slip holder ring 1 x Wireless Receiver