1. 4000Mah polymer lithium battery is used.

2, standby time: moderate use for 4 weeks (moderate use: 3 times a day to answer the doorbell APP for 20 seconds; 20 body detection video alarm messages); Pure standby more than 6 weeks.

3, equipped with 2030 high-power speakers, microphones.

4, 1 Micro-USB, support charging/data transmission, compatible with TF card.

5, the front 5 buttons: left/right/preview/OK/return & shutdown back 1 restart button