Complete wireless freedom Battery powered with 20H+ of playback time Complete wireless freedom - both audio and power cables

Reference monitor performance 2 way active monitor featuring a 4 inch high-excursion woofer and 1 inch silk-dome tweeter Precision tonal accuracy over a flat +/-2dB frequency response from 50Hz to 20kHz Bass vent and boosting EQ tuned to provide a clean bass extension down to 40Hz Shape UNIT-4’s sound to your environment or preference using the AIAIAI app customisable 5-band EQ

Portable, compact and rugged Size and weight of only 3 litres / 2.5kg Rear bass vent designed to be a comfortable carrying handle when on the move Removable steel grille provides sturdy protection for the woofer and tweeter

Connect to everything Bluetooth 5.2 - listen to music from your Bluetooth enabled devices Cable - connect directly via 3.5mm mini-jack and 6.3mm balanced TRS inputs

Responsible design Main components produced from 100% recycled plastics, from post-consumer sources Designed for disassembly in a glue-free design - take the whole speaker apart using two screwdrivers Replace worn out components including battery and drive units Future-proofed for new technologies with upgradeable wireless electronics