Carry Bag, SELF-SUPPORTING STAND and Top Magnetic Clip The carrying bag is padded and lined with soft anti-scratch fabric, which helps to keep the screen protected and make it more durable. It also comes with a shoulder strap to carry the bag. The A3 LED tracing pad features with a built-in stand with 6 levels of height adjustment, allows you to adjust the angle at different angle, helping you to correct the posture and reducing neck, back and eye fatigue while improving working efficiency. Built-in Battery and USB-C Powered Our LED lightbox comes with a 2500mAh internal battery which allows you to use it any where without any power source, which makes your project more convenient as well as more enjoyable! Works for around 5-6 hours after charged 2 hours at a time. This A3 lightpad uses a USB-C interface to easily access any USB port, such as a USB wall charger, computer, laptop or mobile power bank. Also, the USB-C interface is more stable than the Micro interface.