Edifier USA Prisma Encore 2.1 Bluetooth Audio (4001024) Bluetooth pairing capability with A2DP & AVRCP profile support Total Power: 64 watts (subwoofer: 40w | satellites 12w each) 2 way satellite speaker with 3 inch mid-range unit and 19mm silk dome tweeter Subwoofer with UV gloss coating and down-firing 5 inch driver Touch sensitive controls for volume & playback Auxiliary input for versatile connectivity (computer / television, etc.) Professional amp with Digital Signal Processing (DSP) & Dynamic Range Control (DRC) Wireless remote for volume and audio source selection -CR2025 Lithium button battery included.