Features: 1.Super Cardioid Unidirectional Microphone: The headset uses a non gaming headset full 360 degree directional headset, but a super cardioid unidirectional microphone for examination purposes. The Ta focuses on a cardioid angle to pick up the sound, which weakens the sound source outside the angle to a certain extent. Deviate from the role. Help candidates get high scores in the exam. 2.Multifunction: Elastic steel bow, leather headwear, composite double beam structure, rigid and flexible, strong and durable, wearing like a light head guard. 3.With Sound Card: Built in sound card chip to enhance sound resolution; USB2.0 full digital decoding USB interface, high speed signal transmission, faster signal transmission. 4.Noise Reduction: In the test computer information room, there is a local area network composed of dozens of computers. During the exam, dozens of computers are turned on at the same time, which will cause inevitable voltage and current instability. This situation is derived from current noise. At this time, the large magnetic ring can have a certain effect of voltage stabilization and noise filtering. . 5.Working Light: It lights up in working mode, and the ear shell has a blue working light. Candidates and invigilators can clearly know whether the headset is in working condition, and the headset emits a soft blue light without dazzling. TA is like the sea under the night, the lighthouse emits lights, shining hope, and soothing the tension of the candidates. specification:Item Type: Exam Headset Product Material: ABS, PU Microphone: Mic Sizes: Approx.?9.7 x 4.5mm / 0.4 x 0.2in Directivity: Super Cardioid Unidirectional Mic Length: Approx. 160mm / 6.3in Impedance: 2.2k Sensitivity: -36dB3dB Speaker: Diameter: Approx.?50mm / 2in Sensitivity (S.P.L): 100dB3dB Impedance: 32 Frequency Response: 20Hz~20KHz PackageList:1 x Headphone