Details：
The output power is 30W, the rated impedance is 8Ω, and the protection level is IP55. It is aimed at the propaganda and alarm audio devices on various lifting equipment, cranes, mines and large cranes. It is suitable for the high power of lifting equipment such as rural broadcasting, ports, mines, metallurgy, etc. The loudspeaker alarm audio device is especially suitable for rural empty broadcasting, high-altitude and noisy scenes.

Details：
AFT-BG-10 -type public telephone , according to businesses, schools , military units , streets and other public telephone booth demand characteristics of the design of a cost-effective public telephone products.

Details：
1. Easy to use, enter the other party's extension number and press the pound key to dial out; 2. During a call, you can control the conversation reception through the microphone button. Press the microphone button to receive the conversation, and release the button to prevent the other party from hearing the sound, effectively avoiding environmental noise affecting the call; 3. Supports one click playback of custom audio, as well as one click calling and dialing; 4. Long press the pound key to broadcast the local IP address；5. The display screen displays date, IP address, incoming call display, etc.

Details：
1. Easy to install. Just connect two phones with one telephone line and turn on the power to make one-on-one calls to each other. 2. Dual sound and light reminders effectively prevent missed calls. One party lifts the earpiece, and the other party immediately rings and lights up. After the other party lifts the earpiece, the ringing and lighting will stop. 3. Adopting 304 stainless steel shell, transparent green light indicator, zinc alloy hook, ABS+PC alloy material earpiece, the whole machine has IP54 protection.

Details：
1. Easy to use, enter the other party's extension number and press the # key to dial out; 2. Supports one click playback of custom audio, as well as one click calling and dialing; 3. Long press the pound key to broadcast the local IP address；4. The display screen displays date, IP address, incoming call display, etc.

Details：
High quality industrial communication equipment suitable for prisons, elevators, factories and other places. Due to the high integration of motherboard functions, it is also suitable for banks, taxation, industry and commerce, government centers, people's courts and other places; Support volume adjustment; Normal dialing; Automatic dialing, etc.