8” Bluetooth trolley speaker with rechargeable batteryn- Bluetooth, MicroSD card slot, USB input for MP3 music playback & 3.5mm AUX inputn- PLL FM radio with auto scann- Microphone inputn- LED display on frontn- LED light on front of speakern- Power Output: 10Wn- 8” fullrange speaker unit + 1” tweetern- Built-in rechargeable battery – 2200mAh – Working time 2-3 hours per charge.n- Easy transportation with the trolley handle and wheels built-in