Wireless mains-powered doorbell,learning system,38 Melodies,A3920
Description
🛠 Product Overview
While kinetic doorbells are trending, our A3957 series remains the industry standard for stable, long-distance transmission. Using a high-capacity 23A battery, the transmitter lasts up to 12 months with normal use.
📦 Logistics & Packaging Data (For Importers)
- Standard Packaging: Color Box / Double Blister
- QTY/CTN:60 PCS
- Sample Service: Available for quality verification
- Lead Time: 25-35 days for bulk orders
💡 OEM/ODM Customization Services
We support professional customization for global distributors:
1. Logo Printing: Custom logo on button/receiver.
2. Custom Packaging: Designed according to your brand identity.
3. Frequency Adjustment: Specialized frequencies for different regions.
4. Certificate Support: Assistance in local compliance testing.
General information:
| Type of current: | AC |
| Nominal voltage [V]: | 110-240 |
| Color | Black White Silver-gray |
| Sound | 32 |
| Loudness [dB] | 80-90 |
| Volume adjustment | Yes |
| Power supply(Receiver) | Plug |
| Power supply(Button) | 1*12V 23A battery(included) |
| Material | ABS |
| Working Range | 250M |
| Work Frequency | 433MHz |
| Certificate | CE RoHS |
Other products you may like:
