Wireless Door Chime Remote Control Intelligent Door Bells Household with 38music and 4 Volume

🎶 Wireless Door Chime Overview 🎶The Wireless Door Chime offers remote control intelligent door bells. It's a household battery-powered doorbell, suitable for classrooms and homes. After selecting music by pressing the track key, a prompt sound is emitted after 8 seconds of volume key press. The bell confirms the track selection. 📊 Technical Specifications 📊Working voltage: AC100-200VWorking current: Working frequency: 433MHzOperating temperature: -10°C to 50°CWireless distance: 160m (open space without obstruction)🎵 Features 🎵38 pieces of music to choose from.Volume adjustable in 4 levels.Supports up to 16 doorbell buttons.Compatible with 1527/2262 encoding chip accessories.Detects interference on metal doors and short distances.