I have use the kemei product it's a trimmer from kemei km 5808 model number of trimmer but this trimmer not suitable for daily use has its started getting heat insert of time of use.
the product is wireless but not the wireless facility is too much better because it's full charge working till 30 minutes so I am not recommend you to use it because 30 minutes is not suitable to trim your hairs there are several products in market in distance you can choose them like Panasonic trimmers are the best as per my opinion thank you.
This trimmer cost 800 rupees but it recommendable