Wireless Remote Control Goods Finder Anti-Lost Alarm Device Set - Random Color
ABS case material - Includes: a transmitter & 4pcs receivers - Random color: Black + Yellow/Grey/Purple/Deep pink - Working frequency: 433.92MHz - Operation range: 30~40m (outdoor) / 15~20m (indoor) - With "Di Di" sound (lasts for 4 seconds) - Both transmitter & receiver powered by 1 x CR2032 battery (included)