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Pros: This UltraFire brand 18650 does take a charge and has the 2mm or so extra length (relative to raw/unprotected 18650s) suggestive of inclusion of a charge/discharge protective circuit board (as advertised) The included charger also works, though it is a "trickle" charger, and charging can take 24hrs. And it was cheap.compared to better brands.
Cons: From my simple test, timing a Cree LED flashlight run-down, it appears that the battery's true capacity is closer to 2000mAh than the advertised 4000mAh - and this with a fresh battery!
Other Thoughts: But, on the positive side, I also ordered an advertised 4200mAh UltroFite brand 18650 from the same vendor-- and it is worse! Delivery took more than a month. Live & learnREAD FULL REVIEW
This review is from: Polk Audio Tabletop Digital Audio System with iPod/iPhone Dock - I-Sonic
Pros: Outstanding audio performance for a clock table radio. The audio quality is superior to most (with Newegg's rebate, probably ALL) comparably priced and sized (14"x9"x4") PC loudspeaker systems. And a wired AUX input provides means to easily hookup an additional signal source, such as from a PC sound card.
Energy efficiency is also excellent: drawing less than one watt when "off"; one watt when "on" and set to the AUX input but absent a signal dropping into an "auto-standby" mode from which recovery is both smooth and quick; four watts with an audio signal, and five watts at high volume.
Cons: The unit has an essentially obsolete Apple iPod/IPhone 30-pin connector/input; lacks a USB or SD card media reading port/capability, nor is the AM/FM tuner capable of modern broadcast HD-radio reception.
Also, when driven from a PC cabled to the AUX input, each of 3 samples I've tested with several PCs exhibit a high-pitched (audible and irritating, though low level) whine-- sounding like a heterodyne. From the Polk's high energy efficiency, one can assume that the audio amp employs a Tripath switching-mode audio chip; and that may be a factor in the problem. Happily, the whine can be eliminated, without other significant loss, by use of a decent quality audio transformer, such as found in some "ground-loop isolators" sold by Newegg (advertised for car radio use) that serves as an input bandpass filter.
Other Thoughts: Hoping to add utility/value, I also experimented with a 3rd-party Newegg listed gadget that plugs into the 30-pin iPod dock, to provide Bluetooth reception-- but found the model I tried unreliable, with frequent signal dropouts and low quality audio when it did work. Nevertheless, lacking an iPod, there may be other accessories suited to the 30-pin port worth consideration.READ FULL REVIEW
Pros: The LED string can be salvaged by purchase of and use with another brand's controller & remote.
Cons: As others have also found/reported the TaoTronics control box is defective; mine worked briefly for some basic functions, and then failed completely. The IR remote, though inferior to other brands with respect to features/modes, does work, at least in a limited fashion, with the controller box I have from a different brand of LEDs.
Other Thoughts: My best advice-- avoid TaoTronics products; unfortunately NewEgg has no provision to assign zero stars. .My experience with the other, similarly priced LED string brand they carry has been much better.READ FULL REVIEW