• 【4 Working Modes】Choose from sound only, flash only, sound + flash, or sound + steady light, light mode doubles as a nightlight.
• 【Memory Function】Remembers your last chosen ringtone even after power is off, no need to reset.
• 【Self-Powered Button】No battery required for the transmitter, generates energy with each press, ensuring reliability at all times.
• 【Bright Lights & Loud Sound】Clear, adjustable volume with bright LED lights, ideal for elderly or people with hearing impairments.
• 【Strong Signal & Easy Setup】Up to 150m remote range, stable connection with simple plug-and-play installation, perfect for home, office, or large spaces.

Specification:

• Receiving distance: 150m (open area)
• Volume: 4 levels 0-100dB
• Ringtones: 58pcs
• Rated voltage: AC 110-240V, 50-60Hz
• Working frequency: 433MHz
• Receiver standby power: <0.5W
• Receiver size: 86x78mm
• Button size: 80x41mm