1、Cardioid Pickup: Dual UHF microphone, using a cardioid pointing microphone core, rapid response, fine pickup, reduce the interference of the surrounding environment, record sound details. 2、Anti Interference: Wireless microphone with presentation clicker, 30m/98.4ft long distance control, stable signal, strong anti interference ability, more convenient operation. 3、Application Scenario: UHF wireless microphone PPT clicker set, meet the needs of sound pickup and PTT narration, accurately represent the key points, suitable for public lectures or on site teaching. 4、Plug And Play: UHF dual wireless microphone, wireless connection, carrier frequency 500Mhz‑980Mhz, plug and play, applicable to speakers, cell phones, amplifiers and other sound amplification equipment. 5、Long Battery Life: This wireless mic presentation clicker set has built in rechargeable battery, 2 hours charging can be used continuously for 5 hours, 400mAh lithium polymer battery is safe and reliable. Item Type: Wireless Microphone with PPT Clicker Material: ABS Carrier Frequency: 500MHz-980MHz Modulation Mode: Digital Frequency Modulation Frequency Response: 30Hz-18kHz Dynamic Response: 96dB Delay: 2.5ms Charging Time: 2 Hours SNR: 96dB Distortion: <0.1% Frequency Points: 16pcs Receiver Sensitivity: -96dB Battery Type: Lithium Battery Single Transmitter Battery Capacity: 400mAh (Included) Receiver Battery Capacity: 400mAh (Included) Single PPT Clicker Battery Capacity: 400mAh (Included) 2 x Mic Transmitter 1 x Receiver 1 x Adapter 1 x Instruction Manual 1 x Charging Cable 2 x PPT Clicker 2 x 2.4G Receiver