Pros: Works great with Sansa Fuze mp3 and mio gps at same time.

Cons: push in all the way and do not jiggle lighter plug or it will not stay in very well. Of course red lights tell you if it is in far enough

Pros: price on shell shocker bonanza was very low!

Cons: quality was even lower. Treble was astronomically higher than bass. Then one earphone froze. It measures resistence with ohm meter but does no produce any audio. Only worn less than a dozen times before they froze!

Pros: will charge cell phone several times with one charge.

Cons: When charge falls under 2 blue dots (50%) It can take over 24 hours to add 25% to the charge. If over 50% it will completely charge in just a few hour. The supplied cable frays and in my case shorted out the input power supply plug and the cable. Cheap construction. Warranty is one year. Product is worthless after one year and two weeks.

Overall Review: Would not recommend or repurchase. Product was not abused but cheaper materials caused it breakdown too soon. Input micro usb plug after one year will not hold the male usb connection for charging to start and continue.

Pros: worked good for about 5 weeks

Cons: would only charge partially after 5 weeks-- 2 blue LEDs would light, would not recharge HTC evo at all after 5 weeks phone numbers for mfg are disconnected

Overall Review: only 30 day warranty from newegg

Pros: none

Cons: absolutely would not work with HTC Evo Design 4G phone. The unit itself charged just fine, but 2 different HTC phones did absolutely nothing when the unit was plugged into phone micro jack. They did NOT charge after being plugged in for 6 hours. The phone message that the power was low (below 14%) remained after unit was plugged in and the phone ran out of power and quit working while this emergency power unit was connected for less than 2 hours! This unit failed, but phone charger recharged phone completely. DO NOT WASTE YOUR MONEY if you use and HTC smart phone!

Pros: none

Cons: Hp has a history of dropping driver support in future windows editions. Beware