Product Information
- The button supports up to 20PCS, and the receiver supports up to 100pcs.
- If multiple buttons are paired with one or more receivers in the same system, each button can be set to a different ringtone.
- Power-off memory function: Turn the power on again after power off, no need to re-adjust and lock the ringtone.
- The transmitter has no screw chuck design, and it can be waterproof and dustproof without rubber ring.
- The transmitter USE a 23A12V alkaline battery (not included battery).
