This fantastic light and speaker can be used indoors or outdoors, when using outdoors it can even be staked into soft ground at varying heights up to over 1 metre. The speaker lamp itself is 16cm tall and can be used freestanding, but it also comes with 4 connectable stake pieces each measuring 22cm tall, allowing you to create a stake light from 39cm up to just over a meter! These fabulous speakers can also be double paired, allowing you to connect two speakers to one phone, and skipping tracks, adjusting volume can be done from the speaker as well as your device. When the light and music are used together, the flames flicker to the beat of the music! The light and the speaker can be used independently or both together, we tested the light and speaker together and it played for 5 hours. If using indoors you can also keep it plugged in usb c cable included or use outdoors plugged into a solar panel, perfect for sunny days in the garden, at the beach, or on the campsite. Indoor and outdoor usetwo speakers can be paired togetherlight and speakers can be used independentlyrun time of light and speaker together up to 5 hours charge time 4 hoursusb c cable included dc 5v 1a300mah rechargeable battery included transmission distance