Visual walkie-talkies system

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A. Product introduction： Shenzhen Telecom Scientific & Technology Co., Ltd is the manufacturer of Visual walkie-talkies system. TLKS-P-2.4G Visual walkie-talkies system includes two parts: the collector and handheld video & intercom system. The Collector is carried by the personnel in the dangerous operation area, including the image codec module, spread-spectrum circuit, amplifier circuit, antenna, micro-camera, microphone and earphone and lithium cell. The handheld video & intercom system is carried by the personnel in the safety zone to support the portable terminal which carried by the workers. It includes the LCD handheld video terminal, image decoding circuit, LCD screen, antenna, micro-camera, microphone, earphone, lithium cell. The collector is applied with the collecting and playing devices, including a wireless transceiver module, a micro-video camera and a headset. Through the microphone and micro-video camera, the voice and image signals are collected & send to the handheld video-intercom system. At the same time, it receives and play the voice signals which come from the handheld video-intercome system. The handheld video & intercom system is also equipped with wireless transceiver module, 2.4 "TFT LCD, earphone and microphone. The voice and image data which come from the collector will be played & displayed through the ear-microphone and LCD screen. B. System features a. The good reliability and stability can sustain the system work more than eight hours under the harsh environment. b. Strong anti-jamming. The system is based on the 2.4G spread spectrum band and uses the direct sequence spread spectrum technology. c. The System is very easy to operate. d. the System can acquire the concerned video frequency and live voice information in any place and time. e. Highly cost effective. The system has the lower cost, more advanced technology, more capable & scalable than the traditional wired video monitoring system. C. Technical parameters Handset: 1. current of Working with pass voice is 150mA; 2. current of Completing work (including images) is 190mA; 3. Operating voltage is 3.7V; 4. Using 3.7V lithium battery powered 5. Transmitter power is 16dBm; 6. Receiver sensitivity is -100dBm; 7. Voice Frequency Response: 300Hz ~ 3000Hz 8. Headset: diameter 2.5 with a microphone and the audio plug to adjust the volume Headset version: 1. current of Working with pass voice is 150mA; 2. current of Completing work (including images) is 200mA; 3. Operating voltage is 3.7V; 4. Using 3.7V lithium battery powered 5. Transmitter power is 16dBm; 6. Receiver sensitivity is -100dBm 7. Voice Frequency Response: 300Hz ~ 3000Hz 8. Headset: diameter 2.5 with a microphone and the audio plug to adjust the volume Image parameters: 1. Camera: OV7725 2. LCD Screen: 2.4 "TFT 3. Resolution: 320 * 240; 4. Compression way: MJPEG compression 5. Transfer rate: 15 ~ 20 frame/s 6. Whole distance is 150 meters, when converted antenna the distance is 220 meters. Canadian line power or use WIFI wireless sends up to more than 100 kilometers (KM). Annex Battery: Lithium-polymer battery 2000mA / h, 3.7V, charging voltage of 5V restrictions Charger: input AC voltage 110V ~ 240V, 50/60Hz, Output 5V/1A and through Certification Contact information: http://sztlk.com/english/, E-MAIL: wulikanyue@yahoo.com.cn , MSN: wulikanyue@hotmail.com

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Shenzhen Telecom Scientific and Technology Co.,

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