WBK-D Features

Wireless - 2.4 GHz (802.11 b/g/n)
4 Channel - Control Subwofer and Front amplifiers at the same time.
0.96" OLED display shows Car voltage, Attenuation level, Battery level and WiFi status
3 Adjustable Knob Sensitivity settings: Low, Normal, High
Up to 150 feet of range
Built in Auto sleep mode.
Battery capacity of 1000 mAh
USB-C Charging with battery protection
Wide frequency response (10-20khz)