Features:

    One transmitter matches two receivers.

    Different receivers can be controlled by different buttons on the transmitter.

    Credit card sized transmitter fits in any wallet or purse.

    Key chain receiver can be connected with your devices easily like keys, wallets, etc.

    Adopts RF wireless technology, stable performance.

    Anti-lost function, easy and quick to locate your items.

    Long working distance.

    No radiation, environmental protection.

Specifications:

Working distance: 25-30m (in open field)

Working frequency: 433.92MHz

Working voltage: 3V

Current: 2mA

Power supplied by: transmitter: 1 * CR2016, receiver: 1 * CR2032

Transmitter size: 8 * 5 * 0.4cm / 3.1 * 1.9 * 0.1in

Transmitter weight: 14g / 0.5oz

Receiver size: max. 4.4 * 2.8 * 1.2cm / 1.7 * 1.1 * 0.4in

Receiver weight: 11g / 0.3oz

Package size: approx. 20.5 * 14.2 * 2.2cm / 8 * 5.6 * 0.8in

Package weight: 70g / 2.4oz