AL-1 1200mA rechargeable battery inside 10 LED lights 2 bRightness options 5V USB cable for recharging 6 hours for full recharge 3.5 hours continuouse lighting                1200mA rechargeable battery inside6 hours continuouse use after fully recharged10 LED lights, white colour2 bRightness optionsDC 5V USB recharge port, vastly compatible to various mobile phones adapters, and to computers3 colours LED light indicator for battery condition3.5 hours time for full rechargefirm clip With strong steel spring, suitable for all sizes of music standscompact size and light weight for easy carry, and broad light range when open up