Portable models list built-in rechargeable batteries with up to 15 hours of continuous playback and an estimated 4-hour full charge time. Desktop/soundbar-style listings do not specify battery information.
Portable speakers commonly use Bluetooth for wireless audio. Desktop and soundbar-style listings typically list wired connections such as 3.5 mm auxiliary jacks and USB ports. A few listings explicitly note they do not include wireless connectivity.
At least one portable model specifies an IP55 dust-and-water resistance rating. Other listings do not provide durability or weather-resistance ratings.
Reported dimensions range approximately as follows: height 6.6–8.2 inches, width 2.75–4.7 inches, depth 3.25–4.7 inches. Weights range from about 1.07 to 1.9 pounds.
Common onboard controls include volume and power (on/off) buttons and a power indicator. Common ports include 3.5 mm audio jacks and USB ports; some portable models also list an auxiliary input. Bluetooth control is available on models with wireless capability.
Some models are described as compact and portable, with dust/water resistance and up to 15 hours of playback—suitable for outdoor use. Other entries are desktop-style and do not list battery power.
Technical power specs in listings include a total output of 3 watts (1.5 W per channel) and a frequency response of roughly 200 Hz to 15 kHz. At least one listing notes a 2 Year Limited Warranty.
