Kyocera Dreno S2400 review: Kyocera Dreno S2400

Though the TNT is a variant of the Kyocera Adreno S2400, its navigation array and keypad buttons have been slightly redesigned. On the TNT you have a silver toggle that surrounds a central OK button. The toggle doubles as a shortcut to the calls list, messaging menu, Web browser, and your account balance. Surrounding the toggle are two soft keys, a dedicated speakerphone key (nice!), a back button, and the Talk and End/Power keys. Though the controls are flush and a tad slippery, the arrangement is spacious. The keypad buttons have a similar design--flat and slippery, but also spacious. We didn't have any misdials when texting or calling. The numbers on the keys are large and the backlighting is bright.

The TNT has a 250-contact phone book with room in each entry for five phone numbers, two Web addresses, two street address, and notes. You can save callers to groups and you can pair them with one of nine polyphonic ringtones. Alternatively, the TNT also supports MP3 tones.

Other features on the TNT include a vibrate mode, text (but not multimedia) messaging, a calendar, a calculator, an alarm clock, a world clock, an airplane mode, a timer, a tip calculator, a voice memo, a stopwatch, and a notepad. You'll also find a two-way speakerphone and voice dialing. All things considered, that's a decent selection for such a simple phone.

You can personalize the TNT with a variety of color themes, message tones, wallpaper and screensavers. You also can write a personalized greeting. Plenty of other options, and additional tones, are available from Virgin Mobile's VXL Internet service. The TNT comes with one game--Brick Attack--but you always can get more. For storage, the handset offers 29MB of shared memory.

We tested the dualband (CDMA 800/1900) Virgin Mobile TNT in San Francisco. As an MVNO, Virgin mobile doesn't operate its own network; instead it leases space on Sprint's network. Call quality was generally good; the signal was clear and the volume is satisfactory. Voices sounded natural, for the most part, but the audio had a slight tinny quality. It wasn't a distraction, but it was noticeable just the same.

On their end, callers didn't have many complaints. Most could tell we were using a cell phone, but that's hardly unusual. Some callers reported a background hum, which we didn't hear on our end, but it wasn't a universal assessment. Also, both real people and automated calling systems had a bit of trouble understanding us when we were speaking in noisy environments. Speakerphone calls were decent. The small speaker has acceptable output, but the tinny voice quality is exaggerated.

The TNT has a rated battery life of 3.33 hours talk time and 5 days standby time. It has a tested talk time of 2 hours and 50 minutes. According to FCC radiation tests, the TNT has a digital SAR rating of 0.92 watt per kilogram.

What you'll pay

    Visit manufacturer site for details.

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