SmoothTalker BST-850 GSM/GPRS/EDGE/TDMA Cellular Amplifier Manufacturer Suggested Retail Price: $284.95 (including cell phone adapter)! 
This is a powerful, direct-connection amplifier which increase the cellular signal both ways, on transmission and on reception! The correct direct-connection adapter for the device listed in the title is also included! 
The following technical info is provided by the manufacturer: "Specifically designed for GSM and TDMA digital dual band and tri-mode phones, wireless cards, and PDA's. Provides bidirectional amplification for GSM, GPRS with EDGE, TDMA, and AMPS. This is one of the most powerful boosters in the market for use with 850MHz GSM/TDMA. It is FCC approved and delivers 3 watts of undistorted power. Great range and unprecedented signal clarity! The BST-850 is the cell phone booster kit of choice for oil and gas field professionals in North and South America." Please notice: This amplifier will only actively amplify the lower GSM/TDMA band (824-894MHz). Although you will still enjoy the gain passively introduced by the included antenna, we do not recommend this solution unless your cellular device operates on the lower (850MHz approximately) GSM/TDMA band exclusively or most of the time. Please call your cellular service provider and ask them if your device operates in either the GSM or TDMA mode, and if the cellular coverage in your area is in the 850MHz band. You may also contact us to verify your device's compatibility with this amplifier. Features - Works exclusively on 850MHz TDMA and GSM bands (the 1900MHz band is bypassed losslessly)
- Up to 3 watts maximum power
- FCC approved
Benefits - Works with 850MHz GSM/TDMA cell phones and data cards (the 1900MHz band is bypassed losslessly)
- Connects directly to your device antenna's port
- Up to 10 times more power than your cellular device can provide
- Significantly improves voice and data signal quality
- Increases data communication rates needed for 3G technologies
- Receives and transmits better than your cellular device
- Extends cell phone battery life
- Works great in mobile, in-building, and marine applications
- Easy to install and use, and it's inexpensive
Package Contents - SmoothTalker BST-850 Cellular Signal Amplifier
- Cigarette Lighter DC Power Supply
- Direct-connection adapter for your specified device
- 8" 3M-Adhesive Window-Mount Rotary Antenna (Sem15x)
- Installation Sheet

Specifications - Frequency: 824-894 MHz
- Max Output Power: 3 watts
- Power Requirements: 12 V DC, 1.6 A max
- Connectors: MCT Males 50 Ohms
- Dimensions: 8.8 x 3.2 x 0.88 (inches) 22.4 x 8.1 x 2.3 (cm)
- Amplifier Weight: 1.28 lbs / 0.535 kg
The MSRP for this top-quality amplifier is $284.95! Please see our About Me page for warranty, terms of sale, and other information, which you're accepting by purchasing from us. Caution! If you think the model in the title is not a GSM phone, please contact us before your purchase. We revised our ads carefully, but no one is perfect. If this listing mentions a non-GSM or non-TDMA phone, we will remove it right away. Notice that some devices have the antenna port in awkward locations, such as under the battery cover, the camera lens, or even under the battery itself. Please inspect your device and find the antenna port before purchasing this item, or contact us if you cannot find it. Copyright © 2008, 2009 Best Cellular Distributor. This text and graphics cannot be copied even in part without the written consent of Best Cellular Distributor. All trademarks and logos are property of their respective owners.
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Some Frequently Asked Questions and Answers |
| How do I know if my phone is a GSM phone? | If your phone has a SIM card, it is a GSM phone. |
| Which carriers will this amplifier work with? | Here in the USA, AT&T has 850MHz coverage for about half of the country, but to make sure that your city is the lower-GSM band, you may want to call them or contact us. There are dozens of other USA carriers that also use the lower GSM band. |
| Can I also use this at home or in the office? | Yes, as long as you purchase an AC adapter, sold separately (please contact us for details). |
| If I am traveling and my carrier is switching GSM bands, will there be a discontinuation in coverage? | No, because the amplifier will seamlessly and instantaneously switch between active (lower GSM band) and passive (upper GSM band) automatically, and although the passive gain in the upper GSM band will be much smaller, it will still be better than without this solution. |
| I am outside of the USA. Can I still use this amplifier? | Yes, as long as your carrier operated on GSM or TDMA lower band, this amplifier will work in any country in the world. |
| Do you combine shipping? | Yes, but only for multiple purchases of the exact same item. This is because each different item represents a different work order for us, and will be shipped in its own package. In other words, if you order three different lots, we may ship in three different packages with three different tracking numbers. |
| Do you accept any other payment method besides PayPal? | For eBay items, we currently accept PayPal exclusively, but if you plan to purchase from us on a regular basis you can apply for a corporate account, where all possible payment methods will be accepted. |
| How fast can you ship? | We usually ship within two business days from payment, and your preferred shipping option can be selected during payment. |
| Which countries do you ship to? | We ship to every country in the world, except where prohibited by USA Law. |
| What is the warranty on this product? | We sell this product in our retail e-commerce stores as well, so we know that this is a very high quality item, but should you have any problems, we will replace a defective unit if returned to us via pre-approved RMA within 60 days from your purchase. |
| Do you offer refunds? | No, this is a Final Sale, and items can only be returned for exchange if defective, as described in the Warranty Terms above. |
| How do I contact you? | You can contact us using the "Ask seller a question" link above. We answer most questions within 48 hours. |
Copyright © 2008, 2009 Best Cellular Distributor. This text and graphics cannot be copied even in part without the written consent of Best Cellular Distributor. All trademarks and logos are property of their respective owners. |