Electro Voice Evolve50-SB-US Subwoofer box contains:
(1) Subwoofer
(1) Power cord
(1) EVOLVE 50 installation manual
(1) Warranty card
(1) Safety manual

Features:

For Portable Sound PA Systems
Powers EVOLVE 50 Column Array
Magnetically Locking Pole Cup
12" Subwoofer
1000W of Class-D Amplification
Mic, Line, and Aux Inputs
On-Board DSP with Presets, and 3-Band EQ
Supports Bluetooth Audio and Control
No Cable Runs Between Sub and Speaker

EV Evolve50-SB-US (Electro-Voice Evolve 50 sub)