Peterj039

Hello everyone,
My name is Peter (newbie) Forgive me if Ive posted this in the wrong section.
I'm Lead vocalist in a 50's and 60's Rock n' Roll band here in OZ.
Im currently using a Shure SM58 which runs through a vocal Harmoniser for when I do backing vocals.Currently looking at wireless adapters as I like to get out amongst the dancers and get them involved.
Looking at the market i see a variety of types. The three I'm considering is the Xvive U3, Boss wl-30xlr ( both around $360) and the Joyo MW1. ($170)

Has or is anyone using these?
My concern about these is the battery life they are saying 4-5 hours is this achievable.?
The Boss unit runs AA battery the other two run rechargeable Lithium.
An idea how long it takes to charge the Xvive and the Joyo?

There is a big difference in price with the Joyo is the quality an issue.?
Aesthetically how do these stack up? do they look cheap and nasty or professional.

Any comments and advice is greatly appreciated.

Regards
Peter