Wireless bamboo speaker with colourful illumination. Bluetooth V5.0 technology for the highest sound quality. Built-in FM radio and audio playback controls. Equipped with hands-free call function and port for a micro SD card. Output power: 3W. Built-in lithium-ion battery with a capacity of 300 mAh. Charging: DC 5V micro USB (cable included). Transmission range: up to 10m. Charging time 2-3 hours. Play time 2-3 hours.