Contains 2 batteries 1.2 / 4v that can be recharged more than 600 times, can reach 2500V immediately to defeat mosquitoes, can kill mosquitoes, but guarantees safe human safety, charging time 8-15 hours, AC220- 240V.50-60Hz, for safety, do not touch the net and do not put your fingers in the inner layer during charging, suitable only for children over 8 years old, not a toy, size: 515x205 (mm)