SMALL & COMPACT: This pocket size projector is only 11.9cmx8.6cmx4.8cm (0.29kg), not much bigger than your smart phone. You can take it anywhere in your purse, pack or pocket. ONLY IDEAL FOR HOME ENTERTAINMENT IN DARK CONDITION, NOT recommended for Power Point or business presentations.DOESN'T HAVE BLUETOOTH FUNCTION. POWERED BY A POWER BANK: The projector does not have its own battery, it needs a 5V/2A power source such as a wall charger or power bank. Great for travel, hiking and camping where there's no electricity or TV. Also popular with children. MULTI PORTS: The various multimedia ports such as USB/AV/SD slots enable you to connect about everything from smart phones, laptops(mac book not included), tablets, DVD players, game consoles and more. You can also show the video and photos on a USB flash drive, fire stick or micro SD. (To connect smartphones, a lightning to HDMI adapter, MHL to HDMI adapter is Needed, or a WIFI Network Adapter is needed.Not included in the package!)