Wireless Anti-lost Card Finder with 4 Receivers for Key Wallet

Description:

Don't remember where is the car key or door key you put it on? Wasting much time for finding keys or other objects? 
This anti-lost finder can help you to locate 4 objects. Just attaching the receiver with your key or other objects, then 
you will not be upset anymore for finding the key or anything precious. If your key or baggage, or other object is hiding 
at somewhere, you only need to press a button to trigger the alarm sound from the receiver side, making it to be easy 
found for you.
Features:

One transmitter matches four 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: 88g / 3.1oz