?1 Year Warranty?Any issues will be responed in 6 hours. ?POWER SWITCH?It has a power on/off switch to help save battery using time. ?2 WAYS CONNECTION?The keyboard provides 2 kinds of connections ways, one is bluetooth another is 2.4GHz wireless USB receiver. You could connect your mobile device with bluetooth or connect your pc with the USB nano. ?ROUND KEYCAPS?The keyboard has round keycaps that provide a unique look and feel, while also reducing the amount of noise generated when typing. ?SOLID COLOR?The keyboard comes in a solid color, giving them a sleek and modern look that is perfect for both professional and personal use. ?SLIM DESIGN?The keyboard has a slim and lightweight design that makes it easy to carry and use on-the-go, without taking up too much space on your desk. ?SCISSOR - SWITCH KEYBOARD?The keyboard features scissor-switch keys that provide a smooth and responsive typing experience, with low-profile keys that are comfortable to use for long periods.