Wireless speaker WONDER BALL MINI: colour-changing light during playback, music output: 3 watt, to be paired with wireless enabled devices, range: approx. 10 m, can be connected to other external devices through 3,5 mm line-in audio jack (cable length: approx. 53 cm), slot for microSD cards, with hands-free function, frequency range: 20 Hz - 20 KHz, rechargeable battery, capacity: approx. 400 mAh, runtime: approx. 4 h, USB charging cable with Micro-USB connector (length: approx. 53 cm), charging time: approx. 4 h, touch control keys on top, power switch, non-slip coating on the bottom