in active Number of speakers: 1 Power supply: USB Connection method: Connect to Bluetooth Waterproof grade: Not waterproof Play time: approximately 1 hour Delivery list: Audio+shoelaces+data cable Notice *Images on this page are for illustration only and the design of the actual product may differ. *All data on this page are from laboratories, actual results may vary according to differences in software version, environment and phone edition. *Channel availability may vary between markets. Local standards and laws may vary, please ensure this product meets local requirements before purchasing.