Wireless Self-Powered Doorbell DB300d

Self-Powered Transmitter

• No Batteries Required – Press the button to generate electricity, eliminating battery replacement

• Wireless Technology – 433.92MHz frequency for reliable transmission

• Transmission Range – Up to 100 meters in open area

• Compact Design – Φ55×20mm, easy to mount on any door frame

Receiver with Rich Features

• 36 Built-in Ringtones – Choose from a variety of melodies

• 8 Adjustable Volume Levels – From mute to loud, suitable for all environments

• Plug-and-Play – Simply plug into standard socket (US/UK/EU options)

• Wide Voltage Input – 110-240V AC, compatible worldwide

• Low Power Consumption – Standby ≤0.5W, rated ≤2W

Flexible Pairing & Customization

• Supports Up to 10 Transmitters – Ideal for multiple doors or large properties

• Individual Ringtone Assignment – Each transmitter can trigger a different melody

• Easy Pairing – Long press volume key to enter pairing mode, press transmitter to add

• Delete All Transmitters – Long press both keys for 8 seconds to reset

Reliable Performance

• Power Outage Memory – Retains volume and ringtone settings after power loss

• Blue LED Indicator – Flashes with music to confirm signal reception

• Weather-Resistant Transmitter – Suitable for outdoor use (no batteries means no corrosion)

Installation

• Transmitter Mounting – Double-sided adhesive tape or screws included

• Receiver Placement – Optimal height 1 meter above ground for best reception

• No Wiring – Completely wireless, DIY installation in minutes