RedMagic's latest "Cyberpunk Design" accessory packs RGB lighting as well as a 400mAh battery in its transparent housing. It is rated to get up to 6 hours of playback between charges - via USB-C only, which is slightly ironic.
It also houses a 40mm driver (like many headphones) - however, its "conveniently" compact nature restricts its actual audio output to 3 watts (W).
Nevertheless, RedMagic touts the Rock speaker as a luminous source of sonic companionship that can go anywhere with the user and pair to any of their devices with Bluetooth 5.3 connectivity - however, it is also likely to (literally) stick with a compatible smartphone most of the time due to its "Mag-based" design.
Then again, its design also allows it to double as a phone stand when snapped into place.
The Rock Magnetic Bluetooth Speaker is now available for $26.90 as a standalone product - or, alternatively, can be ordered with the 9S Pro Frost Edition (a 12GB RAM/256GB SKU of the cutting-edge flagship smartphone in its latest white colorway) that has also just hit the international RedMagic store at $665.90, or $25 off the bundle's recommended price for a limited time.
The 9S Pro Frost Edition is also currently available by itself on Amazon for $699 at the time of writing, although it will be $649 when re-stocked on redmagic.gg.