Wireless Microphone, Megaphone Handheld Mic With Receiver, Speech Loudspeaker. Features: Adopts UHF Technology, Remote Wireless Transmission Makes Operation Easier Without Annoying Wires, Can Achieve 20m of the Transmission Distance. Broader Frequency Range, Less Interference, Showing Your Voice Easily and Perfectly Adopts the Exacting Complete Electronic Circuit Control, Capture Rich, Full-bodied Sound from Sources That Are Directly in Front of the Microphone. For All Events Like Karaoke, Live-performances, Conference, Church, School, Hall, Party, Etc.  Can Used with 3.5mm and 6.35mm Female Interface Devices. USB Receiver Power Supply by USB Charger,powbank and More. Suitable for Studio / Karaoke / Radio / Etc Suitable for Teacher Guides, Etc. Specifications: Style: Handheld Microphone Transducer: Dynamic Microphone Use: Other Set Type: Single Microphone Polar Patterns: Omnidirectional Communication: Wireless Package: No Power Supply: :2 X AA Battery (not Included) Input: 2.2 - 3V  Working Current: 90mA (Max.)  Working Frequency: 268.85Mhz (Fixed) Pattern: Cardioid Polar Pickup Pattern  Sensitivity: -50 + / -3dB (0dB Equal to 1V / Pa at 1KHz)  THD: Less Than 0.7 Percent  S/N: More Than 110dB  Delay Time: Less Than 5ms  Frequency Response: 50Hz18kHz Power Supply: 2 X AA Battery (not Included)  Operating Temperature: -10 - 50 Size: Approx. 24.5x5cm Audio Cable Length: Approx. 50cm USB Receiver Size: 8x2.5cm Color: Black Material: Plastic Package Includes:  1 X Microphone 1 X USB Receiver 1 X 3.5mm Audio Cable 1 X 3.5mm to 6.35mm Adapter . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.