Nanjing Zhengze Technology Co., Ltd.  

Product Name: Bone Conduction Mask Communication Fire Fighting Model NO.: HM1000 Type: Wireless Earphone Color: Silver, Blue, Brown Wire Material: PU Communication: Wired Function: Bluetooth, Microphone Jack Diameter: 3.5mm Jack Type: Plug-in Usage: Fire Fighting Trademark: ZHENGZE Transport Package: Carton Specification: 120g Origin: China Product Description Bone conduction mask communication system1. Overview1.1 Function IntroductionThe mask communication unit is a small and light mask communication unit specially designed for extremely dangerous environments. It is easy to use, allows you to completely "liberate your hands", enhance personal safety and improve work efficiency;Use a high-sensitivity vibration sensor to collect the vocal cord vibration transmitted to the skull and convert the vibration signal into a sound signal; unlike other traditional headphones, a thin waterproof bone conduction vibration sensor is placed on your head;Due to the unique arm / buckle design, it can be easily and very firmly installed in almost all standard masks without any tools, without affecting the use of other protective equipment;The PTT control button uses the latest digital arithmetic processing (DSP) technology and incorporates a calculation method that only recognizes the sounds emitted by human vocal cords, so that external sounds and impacts are not recognized, which can effectively prevent misoperation; it also provides noise elimination Function, you can perform uninterrupted operation in any noisy environment. Unlike general elimination, the noise part is digitally processed and checked before transmission; the sound quality is clear, and the call is free in a noise environment up to 120dBUnlike ordinary VOX, the digital VOX of this product stores the initial part of the communication in memory until the intercom is in the running state, eliminating the problem of losing the initial part of the syllable.1.2 Product featuresa. Help to improve personal safety;b. Does not affect the use of masks, face shields, helmets and other protective equipment;c. In a noisy environment, you can still speak and listen very clearly;d. Waterproof, temperature resistant, acid and alkali resistant, it is an ideal communication tool for military, law enforcement, firefighting, rescue, and industry when you need to wear a helmet to perform special tasks. It is easy to operate.2. Check items The contents of the box include:l Mask communication headsetlPTT control buttonlInstruction manual3. SpecificationMask communication headsetWeight: 75gPickup: Vibration sensor, noise cancellation 30 dBSpeaker: 32 ohmCable: straight line (flame retardant): 4.2mm / 1000mmConnector: 6-core spiral lock type Working temperature: -25… + 63 ºC (continuous)Working voltage: 2,5… 10,0 VDCHumidity: 95% RH, + 63 ºC for 500 hoursCompatible: all control / PTT units PTT control buttonWeight: 220g (without connector)Dimensions (shell): 86 (height) × 63 (width) × 29.5 (thickness) mmMaterial: Polycarbonate, silicone rubberCable: According to actual useConnector: 6-core spiral lock typeProtection level: IP67Working temperature: -25… + 60 ºC (continuous)Working voltage: 3.7 VDCPower supply: 1030mAH rechargeable lithium battery,Line protection device: current pulse sensor and temperature sensing fuseBattery aging: more than 15 hours (the battery is in a state of saturation and normal room temperature)Humidity: 95% RH, + 63 ºC for 500 hoursCompatible: All Zhengze head units4. Component introductionUnlike traditional walkie-talkie headsets, the microphone of this communication headset uses a high-sensitivity vibration sensor to collect the vocal cord vibration transmitted to the skull and convert the vibration signal into a sound signal; control processing through digital technology to achieve the perfect communication you need Claim. 4.1 Face mask communication headset Pickup (bone conduction microphone): collect the vibration of the vocal cords transmitted to the skull and convert the vibration signal into a sound signal;Installation and disassembly button: unique patented design, it can be easily and very firmly installed on almost all standard face masks without any tools;Speaker shell;Connector: connect with PTT control button4. 2 PTT control buttonMulti-function switch: freely choose multiple communication methods;Connector socket: connect mask communication headset;Manual PTT button: use this button to stimulate the intercom in any situation;Working indicator: turn the selector switch to any one of A, B, C, D, the lamp is always on;Low battery warning light: when the power consumption is left for about 4 hours, this light flashes and alarms;Charging status light: This light is always on when charging, and the light flashes after the battery is full;Connector socket: It is a charging port when charging is needed. When using it, it can be connected to a long-distance ring PTT button or a super large PTT button. When this socket is not in use, be sure to put on a protective cover;Connect with walkie-talkie: Select the corresponding connector according to the walkie-talkie of different models and specifications. 5. Install and use1. Install the communication headset on the customized position of the mask;2. The pickup is installed in the rubber round hole on the top of the mask;5. Rotate the multi-function switch clockwise, the functions of each gear are: file: closed position; A file: Automatic voice activation (only recognize the sounds of human vocal cords); File B: automatic voice activation + noise filtering; C file: manual activation; D file: manual activation + filter noise; Choose the required communication method for free communication.WARNINGPrecautions:a. Before connecting the communication system to the intercom, be sure to check whether the intercom is working properly;b. The microphone is a sensitive component, please do not fold or pinch, and operate it carefully.