This product is suitable for home, hotel, hospital ect; Sound category: Single Dingdong, Double Dingdong, 12 songs, Sender: DC 6F22 9V; Receiver: 2pcs AA batteries; Frequency: 433.92MHz Remote Control Distance: About 30M Use digital codes to avoid interference One sender can control one or more receivers.Model: 2017 Standard: CE Productivity: 30KPCS Origin: China Packing: Blister With Color Card Min. Order: 1000PCS
