Gelius Pro Infinity 3 (GP-BS510SE)

A relatively inexpensive universal waterproof sound system with enhanced playback capabilities—from FM radio to files from USB drives and memory cards. It combines the functionality of a home music center with the mobility of a portable speaker, offering users maximum options for listening to content in any conditions. The full IPX7 protection allows the device to be used near water and even submerged to a depth of up to one meter, making the speaker an excellent companion for beach holidays or active water activities.

The manufacturer positions it as an affordable solution of 2025, designed for practical users who value not only wireless connectivity with a smartphone but also autonomous music sources. The portable speaker Gelius Pro Infinity 3 provides true stereo sound with a power output of 10 W and bass support through a passive radiator. The frequency range of 100-20000 Hz and a signal-to-noise ratio of 80 dB ensure clear sound without distortion for most music genres.

The built-in FM receiver expands its usage capabilities where there is no internet or the smartphone is discharged, and the slots for USB and memory cards allow pre-recorded music to be played without connecting external devices. The TWS function allows you to pair two speakers for enhanced sound or create a full stereo pair. With a battery capacity of 1500 mAh, the device works up to 12 hours, which is impressive for a speaker with such a set of features.