Official Star Trek Tablet Bag with Matching Stylus and Shoulder Strap - Black/Blue (iPad, Samsung tablets, Google Nexus) 80-watt mixer/amplifier 2 full-range, 2-way speakers for rich sound 4 channels with individual balanced mic/unbalanced line inputs Built-in digital delay effect and 3-band master EQ Volume, tone, and effect levels on every channel for complete sound control