The Conference Microphone combines premium material with 360-degree pickup for exceptional sound quality and maximum coverage, ideal for online meeting, business conference, creating podcasts and negotiation, video/audio chat, gaming, etc. Features: 360° omnidirectional audio pickup microphone guarantees everyone can be heard from any direction in the room. The metal protection net cover adopts electrophoresis technology, which is green, environmentally friendly and not easy to fall off. Built-in DSP chip can eliminate echo, reduce noise efficiently, and provide clearer sound. 3.5mm plug & play, no driver required; compatible with Windows & for Mac systems, simple and convenient to use. The maximum pickup range is 3 meters, ideal for video conference, internet interview, online education, video call, etc. Note: Since the product does not have a speaker, it is only applicable to the microphone interface of the computer, not suitable for the microphone + speaker combo interface. In order to use it in the computers with combo jack, you need to purchase a one-to-two 3.5mm conversion line. Specifications: Sound Pickup Range: max. Radius 1.5 meters Mic Sensitivity: -26±2dB (0dB=1V/Pa) Impedance: 2.2kΩ Directivity: Omnidirectional (360 degrees) Frequency Range: 20Hz-16,000Hz S/N Ratio: ≥58dB SPL: 110db Plug: 3.5mm Color: Black Cable Length: approx. 135cm / 4.42ft Item Size: approx. 13 * 13 * 2.3cm / 5.11 * 5.11 * 0.90in Item Weight: approx. 110g / 3.87oz Package Size: approx. 19 * 14.6 * 4cm / 7.48 * 5.74 * 1.57in Package Weight: approx. 168g / 5.92oz Package List: 1 * Conference Microphone with 3.5mm Audio Cable 1 * User Manual (English & Chinese)