Feature: 1. Equipped with 1pcs omnidirectional dual-condenser mic, can pick up natural and clear sound within 6 meters from 360°. 2. Equipped with 1pcs 4Ω 8W speaker, can be loudspeaker in meeting of 5-20 people. 3. Built-in highly efficient and intelligent DSP chip eliminate echo, reduce noise and support ALC function. 4. Support Hi-Fi mode, speaker mute, mic mute and volume control, with light indicator showing status. 5. Work with smartphone and computer, free drive, plug and plug. Support USB wired \u0026 2.4G wireless connecting mode; Driver free, easy to operate. Under wireless mode, the built-in 2500mAh rechargeable battery can last for 8h. Work with communicating software such as QQ, Skype, Wechat, MSN, Sina US, video conference software \u0026 so on. Suitable for all occasions, including video conference, online teaching, online interview, multi-party remote communication \u0026 etc; You can talk while listening. 6. Equipped with 1pcs omnidirectional dual-condenser mic, can pick up natural and clear sound within 6 meters from 360°.Built-in 1pcs 4Ω 8W speaker, can be a loudspeaker in meeting of 5-20 people. 7. The highly efficient and intelligent DSP chip eliminate echo, reduce noise and support ALC function.Support Hi-Fi mode, speaker mute, mic mute and volume control, with light indicator showing status. 8. Compatible for Windows / Mac / iOS / Android system, can be connected to laptop, computer, tablet, smartphone.Support USB wired \u0026 2.4G wireless connecting mode; Driver free, easy to operate. 9. Under wireless mode, the built-in 2500mAh rechargeable battery can last for 8h.Work with communicating software such as QQ, Skype, Wechat, MSN, Sina US, video conference software \u0026 so on. 10. Suitable for all occasions, including video conference, online teaching, online interview, multi-party remote communication \u0026 etc; You can talk while listening. Specification: Features: Equipped with 1pcs omnidirectional dual-condenser mic, can pick up natural and clear sound within 6 meters from 360°. Built-in 1pcs 4Ω 8W speaker, can be a loudspeaker in meeting of 5-20 people. The highly efficient and intelligent DSP chip eliminate echo, reduce noise and support ALC function. Support Hi-Fi mode, speaker mute, mic mute and volume control, with light indicator showing status. Compatible for Windows / Mac / iOS / Android system, can be connected to laptop, computer, tablet, smartphone. Support USB wired & 2.4G wireless connecting mode; Driver free, easy to operate. Under wireless mode, the built-in 2500mAh rechargeable battery can last for 8h. Work with communicating software such as QQ, Skype, Wechat, MSN, Sina US, video conference software & so on. Suitable for all occasions, including video conference, online teaching, online interview, multi-party remote communication & etc; You can talk while listening. Specifications: Connection: 2.4G Wireless / Wired Sampling Frequency of Speaker: 24Khz~48Khz Sampling Frequency of Mic: 16Khz Speaker: 4Ω 8W Mic Type: 1pcs Omnidirectional Dual-Condenser Mic -Sensitivity: -34 ±3dB -Frequency: 100~10000Hz -Impedance: ≤2.2KΩ -SNR(Signal Noise Ratio): ≥58dB -Max. Sound Pressure Level: 115dB -Max. Current Consumption: ≤0.5mA Echo Cancellation: Max. 256ms Reverberation Time: ＜0.5s Product Noise: ＜48dBA Audio Processing: AEC/AGC/NR/NLP/ALC System Environment: Compatible for Windows 8/7/VISTA/XP/2000, For Mac 10.5 / iOS / Android Interface: 3.5mm Audio Input for Mic, 3.5mm Audio Output for Loudspeaker, Phone Audio Port, USB Port USB Cable: DC 5V 500mA, 3 meter long Built-in Battery: 3.7V 2500mAh Operating Voltage: 4.5~5.5V Item Size: 34 * 34 * 4.3cm / 13.4 * 13.4 * 1.7" Item Weight: 703g / 1.54Lbs Package Size: 40.5 * 34.5 * 9.4cm / 15.9 * 13.6 * 3.7" Package Weight: 1487g / 3.3Lbs Package List: 1 * Conference Microphone Speaker 1 * Wireless Receiver 1 * USB Cable 1 * Audio Cable 1 * Quick Start Guide (English) Package List: 1 * Conference Microphone Speaker 1 * Wireless Receiver 1 * USB Cable 1 * Audio Cable 1 * Quick Start Guide (English)