Driver Units: Tweeter (Nominal): 0.75" (19mm) Black Anodized Aluminium Dome with Ferrofluid and Neodymium Magnet
Woofer (Nominal): 4.00" (102mm) Textured Polypropylene Cone with Rubber Surround
Power Rating: Recommended: 10-80 Watts
Program: 60 Watts
Frequency Response: On Axis @ 0 degree +/- 3dB: 57-21,000Hz
On Axis @ 0 degree +/- 1 1/2dB: 67-20,000Hz
Off Axis @ 30 degree +/- 3dB: 67-10,000Hz
LF Cutoff -10dB: 43Hz
Specifications: Go-Rock America Portable Speakers provide monster sound in a small package. Simply twist open to expand the acoustic chamber for enhanced audio and crystal clear sound. All connections are retractable, so there are no messy cords to untangle. The built-in long-life lithium battery lasts for hours and quickly recharges from any USB port with the supplied charge cable.