Rechargeable Wireless Microphone & Receiver Both the microphone and receiver are rechargeable, no need to buy additional batteries The microphone's built-in 1300mAh rechargeable battery can be used for up to 6 hours on a full charge. [Multiple Scene Applications] The rechargeable wireless microphone with portable mini receiver and 1/8"" to 1/4"" adapter is perfect for karaoke parties, DJs, weddings, business meetings, classroom activities, churches, outdoors or indoors Performance. [Operating Range] 30 meters (98 feet) wireless operating range with amazing vocal quality. UHF transmission technology provides a strong and stable wireless signal, don't worry about the sound cutting in and out during use. [Plug and Play] Plug and play, no other settings required. Great for outdoor karaoke speakers, PA speaker systems, power amplifiers, etc. (Note: 1. Not suitable for mobile phones, PCs 2. If using on a sound bar, please use the included RCA cable to connect the receiver and the sound bar 3 .cannot be used on sound bars without RCA LR jacks). Material: Metal Function: Portable, with LED Light, Church, Singing, Wedding Polarity Pattern: Cardioid Type: Dynamic Microphone, 2 Channels Wireless Microphone SNR: 80DB Frequency Response Rate: 80HZ15KHZ Maximum SPL: 130dBS Sensitivity: - 43DB2DB"