1、For VOX Mode: Up to 8 hours of battery life. In Vox mode, there is no need to charge the monitor overnight. This baby monitor will automatically go into sleep mode to save battery when the baby is quiet. 2、2 Way Conversation: 2 way intercom between the camera and monitor, you can talk to the baby, soothe our baby in time and provide them with a sense of security. 3、8 Different Lullabies: There are 8 different lullabies that can help us soothe our baby to sleep. It can also greatly enhance the baby's hearing and memory, and promote the physical and mental health of the baby. 4、Alarm Clock Function: We can set the time on this baby monitor to remind us to feed the baby or remind us to check the diaper to see if it needs to be changed. 5、Portable Design: The video baby monitor is small in size, portable design, easy to carry, and can be carried around. Item Type: Video Baby Monitor Material: ABS Screen Size: 2in Battery: Polymer Lithium Ion Battery (built In) Capacity: 500mah Receiver: Receive Sensitivity: -90dBm Work Resolution: 220x176 Camera: Image Sensor: CMOS Illumination: 0Lux ( IR On ) Night Sight Distance: 15 Feet (5 Meters) Viewing Angle: 31° Diagonally Unobstructed Transmission Range: Indoors: 160 Feet / 50 Meters, Outdoors: 850 Feet / 260 Meters (Sight Distance) Features: 1. Built-in Lullabies Can Help Parents Soothe Their Baby to Sleep 2. Temperature Monitoring. Know Your Baby's Room Temperature Throughout the Day Without Worries 3. Two Way Conversation Between Camera and Monitor, You Can Talk to Baby 4. Watch Your Baby All Night with an Automatic Night Sight Device 5. Up to 8 Hours of Battery Life (in for Vox Mode). No Need to Charge the Monitor Overnight in for Vox Mode 6. Small Size, Portable Design, Easy to Carry 1 x Camera 1 x Display 1 x Adapter 1 x User Manual