EZVIZ Wireless Doorbell CS-DB2 (5MP)

• MP (resolution): 5 MP
• Fixed voltage via bell transformer 8V 2A AC
• Battery capacity: 5200 mAh
• Built-in speaker: yes
• Built-in microphone: yes
• Home security siren: yes
• Custom voice messages: yes
• Operating temperature: -20° C - +50° C