Specifications:

• Doorbell Type: wireless
• Waterproof grade: IP44
• Type: Doorbells
• Receiving distance: 300M Remote (in open area)
• Receiver ringtone function: Power failure memory function
• Power supply: 110-220V
• Power Source: US/EU/UK Plug AU adapter
• Power Source: Battery
• Power Source: AC
• Model Number: A88
• Frequency: 433MHz
• DIY Supplies: Electrical
• Certificate: CE,FCC,Rohs
• Brand Name: CACAZI
• Battery mode: 23A12V alkaline battery(not include battery)