VOCOPRO Wireless Audio Broadcast System, 8.00 x 4.00 x 12.00 (SilentPA-Portable) Body pack Transmitter/Receiver Powered by two (2x) AA, Alkaline OR rechargeable, Batteries Internal Recharge Circuit Allows Simultaneous Operation and Charging of Rechargeable Batteries on both (best with Polaroid AA batteries) Includes one SILENT-PA-TX and one SILENT-PA-RX (Does not include headphones) Operates in 900Mhz Band, No TV Station Interference Utilizes UHF Technology for Greater Reliability and Operating Range than VHF or 2.4Ghz Body pack Receiver Has Two Dedicated Audio Outputs Stationary Transmitter Equipped with Mixing Function to Combine Microphone And Music Signals Lavaliere Microphone Included With Body pack Transmitter Body pack Transmitter & Receiver (Rechargeable Batteries and USB Charge cable not included) 5V USB charging input enables continuous use when used with rechargeable batteries and power bank (rechargeable batteries and power bank not included)