MK-7 3.5mm Elbow Head Handheld Loudspeaker Neck-mounted Microphone with Lanyard, Length: 1m (Black)

1. Frequency response: 20Hz-50KHz 2. Impedance: 680 ohms 3. Directionality: unidirectional 4. Channel: 2-pole mono, 3-level stereo, 4-pole pin 5. Wire diameter: 2.5mm/2 core, TPE headphone cable 6. Line length: 1 meter 7. Application: loudspeaker 8. Microphone size: 9.7x5.0mm 9. Accessories: with a sponge cover