1. Shell material: metal paint + glass bead chain + ABS back plate
2. Size: 4 inches 10.5x11x5.5cm
3. Power supply mode: No. 5 carbon battery (need to prepare)
4. Features: silent when walking, sound of alarm dripping, comes with night light, surface paint process, does not fade
5. Precautions: do not use alkaline batteries and rechargeable batteries with excessive current and voltage, as such batteries with excessive current and voltage can easily damage the movement and affect the service life.
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