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. Using 256ms echo cancellation algorithm, built-in voice automatic gain balance (ALC) function, no matter how far away the speaker is, the sound can be picked up clearly
2. 360-degree omnidirectional high-sensitivity dual-capacitor microphone, effective diameter of 6-12 meters, no dead spots within 20-60 square meters, free to walk around when one person is in a meeting, and everyone can sit in their own place at a multi-person meeting No need to get close or move the omnidirectional microphone
3. Built-in high-performance intelligent DSP chip, input and output audio directly on the chip for high-speed calculation processing, not only can effectively block noise, eliminate echo, high-speed processing 16K-24K audio sampling and calculation, so that software video conferencing applications can be obtained Clear and clean voice communication quality
4. The design of hands-free speaker microphone makes it easier for users to participate in software video conferences or use instant messaging software
5. Compatible with USB 1.0 & 2.0, free drive design
6. Speaker sampling frequency: 24Khz
7. Microphone sampling frequency: 16Khz
8. Operating voltage: 4.5V-5.5V
9. Sensitivity: -34 +/- 3 dB
10. Microphone frequency: 100-10,000 Hz
11. Output impedance: less than or equal to 2.2 kiloohms
12. Signal to noise ratio: greater than or equal to 58dB
13. Sound pressure level: 115dB
14. Compatible system: Windows8/windows7/vista/xp/2000/Mac10.5/Android
15. Size: 325x340x64mm, weight: 650g
16. Cable length: 5m
17. Packing list: omnidirectional microphone, USB high-speed audio cable, manual, certificate of conformity, warranty card

Model YS-M21
Sensitivity -34 +/- 3 dB
Impedance 11. Output impedance:
Mic Frequency 100-10,000 Hz
SPL 115dB
Operation Voltage 4.5V-5.5V
Interface Mini USB
Cable Length 5m
Size 325x340x64mm
Weight 650g
Package Include
Package Weight
One Package Weight 1.52kgs / 3.36lb
Qty per Carton 4
Carton Weight 7.52kgs / 16.58lb
Carton Size 40cm * 35cm * 40cm / 15.75inch * 13.78inch * 15.75inch
Loading Container 20GP: 476 cartons * 4 pcs = 1904 pcs
40HQ: 1105 cartons * 4 pcs = 4420 pcs

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