|  |  | Marshall Kilburn II Bluetooth Speaker [Black and Brass] 
 AUDIO SPECIFICATION
 DRIVER TYPE : DYNAMIC
 FREQUENCY RANGE : 52-20,000 HZ
 MAXIMUM SPL : 100.4 DB @ 1 M
 POWER : ONE 20 WATT CLASS D AMPLIFIER FOR THE WOOFER
 TWO 8 WATT CLASS D AMPLIFIERS FOR THE TWEETERS
 
 BATTERY
 PLAY TIME : 20+ HOURS
 BATTERY TYPE : LI-ION BATTERY
 QUICK CHARGING : 20mins / 3hrs playtime
 CHARGING TIME : 2.5 HOURS
 
 CONTROLS AND CONNECTIVITY
 WIRELESS CONNECT : BLUETOOTH 5.0
 WIRED CONNECT : 3.5 MM INPUT
 BLUETOOTH RANGE : 10 M / 30 FT
 CUSTOMISE SOUND : YES, ON SPEAKER
 TOP PANEL CONTROLS : BLUETOOTH BUTTON
 POWER/VOLUME KNOB
 BASS KNOB
 TREBLE KNOB
 BATTERY INDICATOR
 
 PHYSICAL UNIT
 DIMENSIONS : 243 X 162 X 140 MM
 WEIGHT : 2.5 KG
 WATER RESISTANCE : IPX2
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