Wireless connection Build-in high-quality wireless module to connect with various devices wirelessly and minimize cable clutter. Hi-Fi audio Built-in Hi-Fi Speaker Lifelike and full voice. Digital Signal Processing (DSP) Technology Digital Signal Processing (DSP) for echo cancellation and noise reduction, ensures clear conversation. Extension microphones With two extension microphones to enlarge voice pick-up range up to 6-8 meters. Suitable for people 10-15. 360° voice pickup Built-in 4 microphones for 360° voice pickup with a radius of up to 3 meters. 10 hours of battery life. Built-in 3000mAh battery, long-lasting for up to 10 hours. High compatibility Compatible with most of the operation systems of Android, Windows, Mac OS, and video conference applications.