• RF wireless technology.
• Transmitter is designed as a remote control key, actually it is, easy to operate in a long distance.
• When you press the key of transmitter, the receiver will beep.
• Helps you find your keys, purse or mobile phone easily.
• Radio Frequency: 433.92 MHz.
• Sound Volume: 80-95 dB.
• Remote Distance Range: 40-80 feet.
• Equipped with key rings for easy carrying.
• Battery for transmitter: CR2032*1 (battery included).
• Battery for receiver: CR1632*1 (battery included).
• With one receiver, just find one thing every time.