Electric bell for low voltage signaling with audible ringtone What this product is - A compact electric bell designed to operate on a 4 to 6 volt DC power supply. - It uses a vibrating shrapnel mechanism to produce a ringtone when powered. - Connection is made via two pole terminals with standard wiring. How to use - Connect wires from a 4~6V DC power supply to the two pole terminals. - Apply power to turn the bell on and audible ringtone will sound. Important operation notes - If the vibrating shrapnel does not operate normally, adjust the distance between the contact screw and the shrapnel until the contact and release occur normally. - The unit has been factory tested before leaving the factory. Do not disassemble or move parts randomly. Safety and care - After use, return the bell to its box and store in a dry place away from corrosive gases. - Keep the device dry and avoid exposure to harsh chemicals or moisture. Specifications and attributes - Function: low voltage audible signaling via a ringtone when powered - Compatibility: requires 4~6V DC power supply and two pole terminals - Size: not specified - Material: not specified - Performance: factory tested; adjustable shrapnel contact distance for proper operation - Maintenance: no disassembly or repositioning of parts during use Use scenarios - Educational demonstrations: perfect for classroom electronics projects to show how a simple circuit can generate an audible alert. - Hobbyist prototyping: suitable for small signaling or alarm indicators in DIY electronics, microcontroller projects, or maker kits operating at 4~6V. - Small scale signaling: can serve as an audible alert component in models, prototypes, or compact control panels that require a low-voltage bell sound.