Ryobi has started selling a new product this year, a Ryobi one+ battery powered pool vacuum that is similar to a Dustbuster that works underwater. It has a standard pool stick handle that be used to hold it by hand or attach this to the end of a pool stick and vacuum the bottom of the pool.
I really like this device. It makes it much easier to vacuum something off then bottom than to go get your hose and triangle pool vacuum and deal with all that. It seems quite powerful for a little vacuum as well.
If you have some Ryobi battery powered tools already, this might be something to look into for your pool maintenance.
Your friend has shared a link to a Home Depot product they think you would be interested in seeing.
18-Volt ONE+ Lithium-Ion Cordless Underwater Stick Pool Vacuum Kit for In Ground Pools, Above Ground Pools, and Spas