1. Omni-directional pickup 2. High sensitivity 3. High-fidelity sound 4. Intelligent noise reduction, pure sound quality 5. Plug and play, no battery needed 6. TPE wire, effective anti-interference tension, increase service life 7. Support all Type-C mobile phones 8. Transducer: Electret Condenser 9. Polar patten: OmnI-directional 10. Frequency Range: 35H2-18KH2 11. Signal Noise: 740B SPL 12. Sensitivity: 30dB+/3dB/0dB-IViPa, IKHz 13. Cable length: 1.5m 14. Material: plasticSpecification: Package Weight One Package Weight 0.06kgs / 0.13lb One Package Size 12cm * 9cm * 3cm / 4.72inch * 3.54inch * 1.18inch Qty per Carton 100 Carton Weight 5.00kgs / 11.02lb Carton Size 47cm * 32cm * 26cm / 18.5inch * 12.6inch * 10.24inch Loading Container 20GP: 681 cartons * 100 pcs = 68100 pcs 40HQ: 1583 cartons * 100 pcs = 158300 pcs