Attendance Machine

essl KDB-11 Wireless DoorBell

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KDB-11 Wireless Doorbell

The KDB-11 Wireless Doorbell is a battery-free wireless doorbell system that uses innovative kinetic energy technology, allowing the transmitter to generate power with every press—eliminating the need for batteries. Designed for homes, offices, apartments, and commercial spaces, it offers a long wireless operating range, multiple melody options, adjustable volume levels, and easy plug-and-play installation.

Key Features

Battery-free kinetic push button technology
Wireless operating range up to 100 meters (open area)
32 selectable melodies
4 adjustable volume levels
Waterproof transmitter with LED indicator
Receiver with ambient LED flash notification
Self-learning technology prevents signal interference
Supports multiple transmitters and receivers

Technical Specifications

Specification	Details
Model	KDB-11
Product Type	Wireless Doorbell
Technology	Battery-Free Kinetic Energy Push Button
Operating Range	Up to 100 meters (Open Area)
Receiver Power Supply	110V–240V AC, 50/60Hz
Receiver Plug Type	EU Plug
Melodies	32 Selectable Chime Tones
Volume Levels	4 Adjustable Levels
LED Indicator	Receiver and Transmitter LED Indicators
Transmitter	Waterproof, Battery-Free
Ambient Notification	LED Flash on Receiver
Wireless Pairing	Self-Learning Technology
Multi-Receiver Support	1 Transmitter can control up to 8 Receivers
Multi-Transmitter Support	Up to 4 Transmitters can control 1 Receiver
Color	Black