I bought for the second time. Reliable seller. You can buy without thinking
Sounds good! And working as expected. But I'm on a contact with the seller to get an english manual because is impossible to use properly, only came in chinese.
Just to inform: There's not 65 frequency! Is just 4 channels each unit. If you have any problems with these range of frequencies, you are lost! The seller were informed about it and is not his fault. Seller recommended!