Analog telephone JWBT802

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High Noise Explosion Proof Telephone Waterproof Telephone with Loudspeaker - JWBT802 Model： JWBT802 Protection Class： IP66 Material： Aluminum Alloy Color： Yellow(Customized) Dimensions： 343 × 294 × 206 Communication Mode： Non Switch Product Description 1.Telephone can form an independent communications system. 2. There are 7 self-conversion channels: When the callee pick up the handset , the system can automatically convert channel, cut off loudspeakers and come into normal conversation state. 3. The telephone has a function of full type call (call all the telephones in the system.) 4. The telephone has a function of single type call(only call one telephone of the system) 5. The telephone has a function of group type call.(only call the preset group telephones in the system) e.g. We make ten telephones a group. When we make group call, only the group telephones will ring 6.After the composition of the call system, the product has an automatic gain function, and the voice does not vary with distance or telephone quantity. 7.Telephone circuits within the integrated circuit using internationally accepted double-sided, with hair the exact number, call clarity, job stability, etc. 8. Aluminum alloy housing with high mechanical strength, and impact resistance. 9. High temperature electrostatic spray of the shell surface with anti-static ability and eye-catching 11olor. 10. Key parts of the handle, the hook, the keyboard are produced by our own company; strict quality control and fast after sale reaction . 11.The volume of the amplifier can be adjusted.