The search results include computer 2.1 systems, surround speakers, portable Bluetooth speakers, and floorstanding reference speakers.
Portable models list up to 12 hours of battery life, use rechargeable lithium-ion cells with about a 2-hour charge time, and support USB-C charging (one model specifies 18W USB-C fast charging).
Some portable speakers are rated IP67, meaning they are fully dustproof and can be submerged up to 1 meter for 30 minutes.
Some systems offer desktop or mobile control apps with EQ adjustment, lighting controls and music-react modes, night mode, broadcast pairing, and over-the-air firmware updates.
Home theater speakers list flexible wiring with dual input terminals that support bi-wiring or bi-amping to separate high- and low-frequency signals.
Dimensions vary widely: heights from about 4.13 in to 43.1 in, widths from about 4 in to ~10.84 in, depths from about 1.73 in to 18.25 in, and weights ranging roughly from 0.9 lb up to 61.4 lb.
