All about that base, no trouble: Magnetic charging base offers storage and power in one convenient package, keeping the hi-def Bluetooth® 4.2 earbuds ready to rock. Includes built-in microphone with volume control, 30' wireless pairing, LED indicators, and call compatibility. Charge base via wireless charging pad or micro USB (cord not included). 2.25" x 1.25". White. Screenprinted Dell RSA logo.