The Motorola Endeavor HX1, which is available only at Sprint, is the first Bluetooth headset to combine CrystalTalk noise-cancellation technology with a new stealth mode.

While noise-cancellation technology is only designed to reduce everyday background noise, stealth mode promises to "instantly seal off outside noise".

The Endeavor, though, is priced as a premium Bluetooth headset. Is it the perfect new wireless accessory for you? Learn all about the Motorola Endeavor HX1 here!

Various cell phone carriers (including Sprint, Verizon Wireless, Alltel Wireless, Kajeet and others) allow parents to locate their kids with GPS.

GPS location services range from $5 to $10 per month at various carriers with no additional equipment required. You just need a cell phone with embedded GPS technology.

Along with being able to accurately locate your kids via satellite, some carriers even let you set "zones" so you receive a text message when your child enters or leaves an area.

You can also be notified if a registered sex offender moves into your neighborhood. Learn all about GPS location tracking for your kids!

The BlackBerry Curve 8530, which is an entry-level smartphone, went on sale today at Sprint for $49.99.

The $49.99 price is only valid on new-line activations or eligible upgrades with a two-year service agreement and after a $50 instant rebate and $100 mail-in rebate.

Though the Curve 8530 doesn't pack some upgraded features like a high-resolution display or world roaming (i.e. as with the BlackBerry Tour), it does make some smart improvements over the waning BlackBerry Curve 8330.

These updates include an optical trackpad, a next-generation processor and dedicated media controls. The Curve 8530 even has a big feature that the BlackBerry Tour does not: Wi-Fi for hopping online at local coffee shops and such.

The Curve 8530 also features a 2-megapixel camera, expandable memory up to 32 gigabytes, a full QWERTY keyboard, GPS for free turn-by-turn directions with Sprint Navigation, voice-activated dialing, a speakerphone, Bluetooth for short-range communications and more.

The smartphone measures in at 4.29 inches by 2.36 inches by 0.55 of an inch and weighs in at 3.9 ounces. Its display is 1.5 of an inch by 2 inches with a 320x240 screen. The Curve 8530 is rated at 5.4 hours of continuous talk time.

In addition to Sprint, the BlackBerry Curve 8530 went on sale at Verizon Wireless on Nov. 20, 2009 for $99.99 with a two-year contract and after a $100 mail-in rebate.

For the same reason you'd sometimes prefer to send a text message to a cell phone, did you know you can text to a landline phone, too?

Text-to-landline service is already available to you at various cell phone carriers (including Sprint, Verizon Wireless, Alltel Wireless and other carriers).

The service, which is sometimes free or can cost extra per use, converts a text message from a cell phone to a voice message on a landline phone.

Here's everything you need to know about text-to-landline service at various carriers.