Very Disappointed 45

I bought this product Wireless because I do not have electricity at the gate.
I am very disappointed as the usage time of the battery is very short: about ten days.
We constantly recharging.
Another negative point: the document is very brief and in English, a language I do not know and I do not intend to learn it. Do not provide operating instructions in the language of the country where the device is sold the manufacturer demonstrates contempt and seller to the buyer.
Best of all, the origin of manufacture is not mentioned, nor on the product or on the packaging, but certainly China; so no disappointment on quality, in line with its reputation ...