Specifications Bluetooth® version: 2.1 + EDR Support: A2DP V1.3, AVRCP V1.5 Low frequency: 5.25″ (133mm) polypropylene graphite-fi lled cone woofer High frequency: 1″ (25mm) CMMD® Lite dome tweeter Rated power: 30W per channel RMS (AC mode) Frequency response: 62Hz–20kHz (-6db) Signal-to-noise ratio: >75dB Battery type: Lithium-ion Polymer (7.4V, 2600mAh) Battery charge time: 2.4 hours @ 0.5C Playback time: Up to 4 hou Dimensions: 9-1/4″ x 6-1/2″ x 6-1/4″ (235mm x 165mm x 159mm) Weight: 6.5 lbs (2.95kg) Finishes: Graphite/White/Red