Your guests bring multiple devices with them. These devices are loaded with their own content including music, which they would love to stream via Bluetooth. But most importantly, they need to charge these devices, generally at the bedside.
A clock with multiple charging options including wireless charging and USB ports plus Bluetooth ticks all the boxes for your guest. But you do need to make sure it has hotel specific features such as Single Day alarm and display brightness control. These are two things that guests really appreciate.