Sound Activated 433.92MHz 1-to-1 Wireless Key Finder - Blue + Black (1 x CR2032)
Color: Blue + Black - Material: ABS + plastic - Remote control distance: Outdoor (30m) indoor (20m) - Working voltage: 3V - Current: 2mA - Working frequency: 433.92MHz - Beep sound will help you find where the key is - Comes with 1 card style transmitter and 1 receiver (built-in 1 x CR2032 battery)