Bamboo wireless speaker - Bamboo wireless speaker - Wireless speaker 5.1 made of ABS, bamboo housing, cotton, hanging loop. LED lamp, 1 Li-POL 300 mAh battery, SD card port, AUX/USB cable. Output: 3W, 3Ohm and 5V. Playback time approx. 3 hours. Bamboo is a natural product, so there may be slight differences in color, pattern and size.