Caston St-915 Portable Wireless Speaker. Radio

Supports various playback modes including Bluetooth, USB, TF Card, Aux, and FM radio. The speaker features a TWS (True Wireless Stereo) function, allowing you to wirelessly connect two speakers together for an amplified listening experience. It has a built-in battery, with some models featuring a capacity of 1200mAh. It offers a 5W power output.