Wireless Intelligent Home Doorbell

• Item Type: Doorbells
• Material: ABS
• Battery: 12v 23A battery
• Working frequency: 433 MHz
• Receiving distance: 300M
• Receivers Rated Voltage : AC 110V-220V -240V​
• Transmitter Size: 75 x 51 x 20 mm / 2.95 x 2.01 x 0.79 inch
• Receiver Size: 95 x 65 x 24 mm / 3.74 x 2.56 x 0.94 inch

Package Includes:

• 1 x Black transmitter and 1 x Black receiver
• 2 x Black transmitter and 1 x Black receiver
• 2 x Black transmitter and 2 x Black receiver
• 1 x Black transmitter and 2 x Black receiver
• 1 x White transmitter and 1 White receiver
• 1 x Black receiver
• 1 x Black transmitter