• Two-way Audio: You can sign for the delivery when you're not home
• Strong signal, long-distance transmission
• 50 Meter Strong Penetration: No More Attention for No Signals, No Sound
• Multiple Scenarios: Office, Hotel, Apartment, and Home

Specifications:

• Lens 0328: Angle 75 degrees
• Battery type: Built-in lithium battery 400 mAh, continuous life of 2 months
• Power input: 5V-2A
• Storage function: cloud storage
• Voice system: two-way intercom/cell phone remote prompt view
• Recording range: 5m
• Wireless connection: WIFI IEEE802.11b/g/n 2.4GHz,rf 433MHz
• System support: Android4.3 or ios9.0 or above
• USB interface: MICRO-USB 5P/DC5V-1A