Operating voltage: DV18V

Working current: standby ≤80mA, working ≤300mA

Resolution: 1024×800

Call ring: 70dB

Frequency response: 300-3400Hz±3dB

Audio undistorted power: ≥50mW

Ambient temperature: -10℃~55℃

Display: 7 inch TFT LCD screen

Response parameters: ringing time: 30S Talk time: 60-120S Monitoring time: 15S