Get $70 Discount On Wireless Speakers At Bestbuy.com. Listen to the music or videos on the go with this JBL Charge 2 speaker that connects to most Bluetooth-enabled devices for easy access to the music library. The built-in bass port delivers thumping lows. The 1-5/8" woofer along with a built-in bass port ensures crystal-clear audio with booming lows. The 15 W amplified power provides quality sound for the music. The 6000 mAh lithium-ion battery provides up to 12 hours of continuous playback and recharges easily via the included USB cable.