For 20 years, SINIWO has been a leading Chinese manufacturer of industrial volume control telephones. We specialize in providing communication solutions and comprehensive support for a wide range of industries, including Oil & Gas, Metro, Railway, Marine, Mining, Tunnels, Parks, Hospitals, and Elevators.
The SINIWO volume control telephone handset is an accessory designed specifically for noisy industrial environments. It features a rotary volume control switch that allows the speaker volume to be adjusted from 70dB to 95dB.
| Model No. | A15 |
| Waterproof Grade | IP65 |
| Operate temperature | -30～+65℃ |
| Storage temperature | -40～+85℃ |
| Relative Humidity | 30%-90%RH |
| Atmospheric Pressure | 60~106Kpa |
| Material | UL approved ABS |
| PTT type | Rotary volume control switch |
| Volume control range | 70-95dB |
1. SINIWO volume control telephone handset was updated base on the traditional PTT switch handset by increasing a rotary volume switch inside to adjust the speaker voice. It could be made with controlling microphone volume too according to customer’s request. Here is the dimension drawing for your reference.
2. SINIWO volume control telephone handset could be used in Oil&gas, Metro, Railway, Marine, Mining, Tunnels, Parks, Hospital, elevator, etc where with noisy environment. With volume control telephone handset, it could reduce the noise from background, which is popular in industrial area.
3. SINIWO volume control telephone handset is packed in neutral cartons with pallets or wooden boxes for mass order, so customer could request to update the packing information except the small order.
