New ATS MINI V4 Mini Radio - SI4732 Pocket Shortwave Radio, Built-in Headphone Amplifier and Hi-Z, AM/FM/LSB/USB Full Band Receiver, DSP Radio with Dual Antenna

V4 Update Notes:1. Added shielding to the Si4732 receiver to suppress electromagnetic interference; added ESD protection at the antenna input to protect the chip.2. The high-impedance circuitry has been moved to the front of the antenna path, and a more stable VCC_RADIO power supply is used to maintain signal resonance and reduce noise.3. Wired headphones are now used as the FM antenna (headphones are not included in the package; use in an environment with a strong FM signal and with a longer headphone cable for optimal performance).4. The left and right channels have been swapped; amplifier and speaker parameters have also been recalibrated to improve sound quality.5. Replaced with higher-end accessories: a telescopic antenna and a more tactile, non-slip knob cap.Basic Functions:1. Employs ESP32-S3 main control, 1.9-inch IPS high-definition color screen.2. Uses SI4732 DSP chip, supports full-band broadcasting, LSBUSBAMFM mode.3. Built-in 800mAh battery, providing over 10 hours of battery life.4. Equipped with a portable loop antenna, capable of receiving frequencies from 9.9kHz to 108MHz.5. Built-in headphone amplifier circuitry ensures sufficient volume when using headphones.6. Built-in high-impedance circuitry improves weak signal resolution.Specifications:Model (Hardware Version): V4Controller: ESP-32-S3Operating Mode: FM/AM/LSB/USB (Note: Aviation bands not supported)Receiving Bands: HF/SW/MW/VHFFrequency Range: LW, MW, SW (150kHz - 30MHz), VHF (64-108MHz)Screen: 1.9-inch, 170*320 resolutionScreen Brightness: Adjustable from 32 to 255 levelsCharging Port: TYPE-C (Fast charging not supported)Audio Interface: 3.5mm three-channel stereoAntenna Interface: SMA-KE (female)Battery Capacity: 800mAPackage Contents:1 x Radio2 x Antennas

• [New Version V4 ATS Radio] Feature Upgrades ESD-resistant antenna input—prevents electrostatic damage and extends lifespan; shielded Si4732 tuner isolation circuitry avoids electromagnetic noise interference; high-impedance front-end circuitry maintains signal resonance; stable power supply reduces noise. Supports the latest firmware for a better user experience.
• [Enhanced Sound Quality] This pocket radio offering strong anti-interference capabilities. Equipped with calibrated channel output, fixed left and right channel direction, and a tuned audio amplifier, it delivers exceptional sound quality. It is virtually unaffected by bird calls or digital radio frequency interference.
• [Compact and Durable] The ATS MINI V4 radio measures only 3 x 1.4 x 0.8 inches, features a 1.9-inch HD screen, and a built-in 800mAh rechargeable battery, making it more robust and durable. It is an ideal choice for radio enthusiasts who value portability and performance.
• [Dual Antenna Options] Equipped with a retractable antenna and a loop antenna, it provides excellent reception performance both indoors and outdoors, ensuring a clear and uninterrupted signal.
• [Full-Band Support] This compact radio employs an ESP32-S3 microcontroller and SI4732 chip to ensure high sensitivity and low interference. The full-band receiver covers an extensive frequency range and supports LSB, USB, AM, and FM modes, making it an ideal choice for diverse listening scenarios.