Feature: 1. 2.4G full digital frequency hopping and encryption technology, barrier-free distance of 200 meters, strong anti-interference. 2. 7in color monitor screen to display images, touch buttons, perfect and novel designed, and the frequency of use up to 500,000. 3. 0.3MP camera, provides you with clear pictures, practical to use. 4. Hands-free calling and intercom, one-key unlocking, outdoor monitoring, support indoor intercom call function. 5. Chinese, English, German, Spanish, French, and Russian 6 lagauages are available. 6. With 4 polyphonic ringtones, selectable ringtone and adjust ringtone volume. 7. With clock calendar, automatic photo function, can store 100 photos. 8. The outdoor unit has clear infrared night vision, which can monitor and shoot images in the dark, night vision distance is 3-5 meters. 9. The outdoor unit has a rain cover, moisture-proof and waterproof, can be used freely in outdoors. 10. Low power consumption, the outdoor unit with a battery standby time of 2 months, it can also be plugged in to work, and the battery can work when there is a power outage. 11. Rechargeable BL-5J battery, easy to be replaced, convenient for using. 12. Power-on lock function, support power on unlock and power off unlock. 13. The outdoor unit is fixed with screws or pasted on the wall or door, and the indoor unit displays the signal strength, it can be used freely in places with stable signals, can be hung on the wall, closet, etc., or placed on the desk, coffee table, dining table, etc. 14. Wireless connection, simple installation, no wiring required. 15. Simple to use, easy to complete visual intercom, one key to unlock. 16. Suitable for office, villa, small courtyard, unit family, apartment and other places. Specification: Condition: 100% Brand New Item Type: Video Door Bell Color: As picture shown Indoor Unit: Screen: 7in TFT LCD Sensitivity: 90dBm Lcd Resolution: 800 x 480 Lcd Screen Brightness (cd/m2): 200 ± 10% Working Power: 8W Working Current: 250mA Standby Current: 20-30mA / 3.7V Battery: Rechargeable Lipo Battery (Included) Battery Capacity: 1350mAh Standby Time: 120 Hours Photo Format: 640 x 480 JPG Working Frequency: 2.4G ISM Digital Common Frequency Band Adapter Output: DC5V / 1A Working Temperature: -10 ℃ - + 50 ℃ Material: Plastic Size: Approx. 225 x 128mm/8.9 x 5in Outdoor Unit Specifications: Working Frequency: 2402 - 2483.5MHz Transmit Power: 16 - 20dBM Lens: CMOS 3.6mm 92 Degrees, HD 0.3MP Working Current: 300mA Standby Current: 20 - 30mA Battery: Rechargeable Lipo Battery (Included) Battery Capacity: 1350mAh Standby Time: 2 Months Adapter Output: DC5V / 1.0ASize: Approx. 110 x 165 x 65mm/4.3 x 6.5 x 2.6in. Package List: 2 x Indoor Unit 1 x Outdoor Unit 1 x Outdoor Unit Power Adapter 2 x Indoor Unit Power Adapter 3 x BL-5J Battery 1 x Manual 2 x Screw Bag 1 x Three-Core Unlocking Cable 2 x Indoor Unit Fixing Bracket