Good Guy Stereocases start at $399.
The amplifier is built-in, just plug your phone/tv/laptop into the 3.5mm jack (wire included). It's fully portable. A battery and charging circuit are built-in. When the case dies or gets low, just plug it in to the wall (power cord included). A full charge lasts about 12-20 hours.
The Bluetooth only option is $90
The Bluetooth Plus option is $130
- That includes Bluetooth, USB port (charges phones &plays music from flash drive), SD card slot, Am/Fm radio, EQ with presets, LCD screen and remote control.
Turntable Pre-Amp option is $25.
I can also build a non-portable case (no battery/charging circuit) that plugs into the wall for $349. This case can later be upgraded with the battery and Bluetooth options.