Gentech versatile miniature microphone 303A teaching handheld wireless microphone headset

Gentech 303A teaching microphone | Multi miniature wireless microphones | Handheld wearing Product parameters: L * W * H: 111 * 28 * 14mm directivity: unidirectional condenser Sensitivity: -38 (dB) frequency range: 40- 16K (Hz) Impedance: 680Ω Carrier Frequency: 2400-2482Mhz Modulation: GFSK RF power: 0dBm Wireless transmission distance: 15-20 meters Transmitter Operating voltage: 3.7V lithium polymer battery Continuous working time: 12H with a professional ID code encryption transmission technology, ID encode up to one million group, each product has only one ID code. The same place using the same sets of equipment interfering. The user does not speak, or in a weak signal status, the receiver has an automatic mute function. The microphone set wireless microphones, electronic pointer, PPT flip, computer audio control functions in one compact, easy to carry management, a division of a microphone, clean! Zhuhai City fine-electronic Technology Co., Ltd. Contact: Miss Jiang Tel: 18933206368 company's official website: http: //www.zhjingfeng.com company Taobao: http: //shop68643927.taobao.com Fax: 0756-8630550 Company Address: Guangdong Lek River Hill before Xiangzhou District of Zhuhai City, the first industrial province