BT-104UM UHF Dual-Fixed Channel Wireless Handheld Microphone System Microphone and Headset

One (1) Wireless Digital Microphone One (1) Wireless Microphone Headset Dual fixed frequency channel and broad audio response range Four (4) AA alkaline batteries (included) Aluminum carrying case (included) 15 hours of wireless operation  UHF range Channel Frequency Range: 520~556MHz  Features: Mute Power OFF/ON LED status signal indicator light Dual independent antenna Range: 196 ft. operating range — up to 200 ft. line-of-sight AC Adapter: 110-240V UPC: 643307992908