ZJ002MR-01 Mono 3.5mm Plug Bluetooth Wireless Interpreter Tour Guide Megaphone Straight Microphone, Mono

1. Frequency response: 50Hz-20KHz
2. Impedance: 680 ohms
3. Directionality: unidirectional
4. Channel: mono
5. Application: megaphone, interpreter, mobile phone, outdoor interview, live broadcast
6. Microphone tube size: 3.0mm metal microphone tube
7. Total length: 100mm
8. Microphone size: 9.7x5.0mm
9. Accessories: with a sponge cover