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TEF6686 Full‑Band DSP Shortwave Radio with TFT Display — 4‑Band AM/FM/SW/LW, 45mm Dual Speakers 5W, 4000mAh Battery, USB‑C ，BNC Antenna, Remote Control — Portable SDR for Ham/DXers
✅ In stock
⭐ Lowest price we've tracked
📉 Price recently dropped
C
Grade
Analysis Confidence
55%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Aug 23, 2026 5:33 PM · Prices & availability subject to change
Is This a Good Price on Amazon?
🙂 Fair Price- 🙂Verdict: Fair Price. Small discount vs history. Consider waiting for a better drop.
- 💰The price is modestly below what this product ordinarily sells for.
- 🏷️The listed retail price is trimmed by 10% at checkout.
- 📉Our analysis places this at the most competitive price point we have ever tracked for this product — an exceptional moment to buy.
- 📈The direction is downward at the moment; if that holds, an even better price may surface — though timing the market is never certain.
How We Scored This Deal
Price Competitiveness
6.32/28
Recent Value
4.51/22
Market Standing
10/20
Deal Strength
20/20
Momentum
10/10
📝 Product Overview
🏪 Sold by
zuninshangdian
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓Full Band with DSP Chip: Equipped with TEF6668 chip, this portable radio supports both AM and FM, covering all bands with exceptional sensitivity. The frequency range includes FM (65-108MHz), LW (144-513KHz), MW (520-1700KHz), and SW (1.7-27MHz). It excels at receiving weak signals, boasts excellent selectivity, can distinguish target signals from adjacent interference in complex electromagnetic environments, and suppresses adjacent-channel interference, providing stable and clear audio output.
✓Ideal for Seasoned Radio Enthusiasts: If you're a DXer or Ham, this portable radio is your outdoor radio fun choice or a backup radio. This lightweight radio features a 4000mAh rechargeable battery for about 10 hours runtime. A USB-C port for easy charging and connection. As an SDR radio, it enables software update without hardware modifications(refer to 6686 chip open-source community), making it ideal for DIY your own radio. The BNC antenna interface allows you to replace antenna accordingly.
✓DSP Radio for Beginners: With a TFT display featuring backlight and an intuitive UI design, you can easily view various parameters. The automatic bandwidth mode automatically suppress noise and improve sound quality. The automatic tuning and memory allow for quick reception and fast location. The combination of PI and PS codes helps quickly identify station names, while PTY and RT clearly show the program type and radio text. For those with basic knowledge, the bandwidth, signal strength, signal quality, and audio range parameters helps practice skills under different signal and interference.
✓Convenient Remote Control: To enable more convenient operation, we've designed a dedicated remote control for this radio. With the remote, you can perform all radio functions, including switching between AM/FM modes, changing frequency bands, adjusting volume, modifying bandwidth, entering frequencies, adjusting the squelch range, muting, and powering on/off.
✓Stereo Sound: The high-performance 45mm dual speakers with a digital amplifier deliver rich, distortion-free stereo sound with 5W output. The adjustable bandwidth (Auto AM: 3/4/6/8kHz) optimizes reception in noisy environments. The dual-speaker design creates a surround sound effect, allowing you to better immerse yourself in the music. Meanwhile, the 3.5mm headphone jack on the back of the radio lets you enjoy it at home without disturbing your family.
✓Notes: Antenna type, angle, signal attenuation, and interference are as important as the device itself. The radio comes with a telescopic antenna, but for better performance, recommended to use a loop antenna for LW and a ferrite antenna for MW. If you're new to radio technology, we suggest starting with FM which has strong anti-interference ability. The SW, MW, and LW bands can only receive signals in AM mode and require frequent frequency adjustments with a certain learning curve.
⚙️ Specifications
Brand
Ksaipx
Color
Silver
Special Feature
Rechargeable
Connectivity Technology
USB
Tuner Technology
AM/FM
Style
Modern
Power Source
Battery Powered
Radio Bands Supported
4-Band
Recommended Uses For Product
Music, News, Sports Broadcast
UPC
757283383992
Additional Features
Rechargeable