She does her job just fine. For her price, she's okay. However, if you want to use her without electricity, only with the battery, look for others. This one here might last about 2 hours before it shuts off. Only when plugged in, she's great. No disconnections and no problems. Of course, don't expect much from her image. Okay, she just shows day and night with infrared but with snow. She also has sound, but only for listening. Finally, she also accepts a memory card, but I haven't tried it and I have no opinion. In conclusion, whoever gets her should always have her plugged in, otherwise, look for a more expensive one.