New NXP_EXAir+ 65MHz-108MHz FM Radio Receiver TEF6687 Support FMSI Function with 2.8-Inch IPS Screen

Introduction:
- Adopting the TEF6687 chip (upgraded version 6686), the machine is equipped with an aviation frequency converter and integrates Bluetooth transmission function to connect Bluetooth earphones and speakers.
- Compared to 6686, 6687 has added FMSI functionality, which significantly improves FM stereo separation, signal-to-noise ratio, and stability in weak signal, multipath interference, and high-speed mobile scenarios, reducing lag and distortion in stereo/mono switching.
- Classic black and orange color scheme.
- Built in cavity speaker for better sound quality, less muffled sound, and elastic bass that can be listened to for a long time without getting tired.
- Screen: Upgraded 2.8-inch IPS LCD screen with wide viewing angle and touch support. Supports fast frequency input, which is faster and more convenient than adjusting the frequency with a shuttle knob.
- Shell: Made of PETG material, scratch resistant, wear-resistant, impact resistant, sturdy and stable.
- Size: 13.2cm x 7.3cm x 2.9cm with lanyard, still compact and portable.
- Audio: Supports 3.5mm audio output, 3W AB class amplifier, built-in max97220 headphone amplifier chip, strong bass effect, and good sound for external headphones; Paired with 6687 receiver performance, the FM stereo effect is top-notch.
- Built-in 5000mAh large capacity lithium battery, with a battery life of over 10 hours (slightly different under different temperatures, tested at 26 degrees Celsius for 12 hours on full charge).

Specifications:
- Tuning chip: TEF6687 (silk-screen printing F8705), support FMSI
- Frequency range:
  FM: 65MHz - 108MHz
  LW: 144kHz - 519kHz
  MW: 522kHz - 1710kHz
  SW: 1800kHz - 27000kHz
  AIR (need firmware support): 118MHz - 137MHz (built-in frequency mixer)
- Audio: built-in 97220 headphone amplifier, support 16ohm - 150ohm headphone driving
- Power amplifier: 3W AB class amplifier chip
- Battery: 5000mAH lithium battery, duration of 10h
- Main control chip: ESP32, dual-core main frequency of 240MHz
- Display: 2.8-inch IPS screen (320x240 resolution)
- Bluetooth: based on Bluetooth5.3 firmware control, support SBC/AAC audio decoding
- Product size: 132 x 73 x 30mm (excluding the knob length)
- Net weight: about 260g

Package Included:
- 1 x FM Receiver
- 1 x Telescopic Antenna
- 1 x Lanyard
- 1 x Cleaning Cloth

Note:
- Bluetooth testing can support for Apple Airpods series, Huawei FreeBuds 6i, Sony XM-5, Samsung HW-Q600c, etc. Some private Bluetooth protocols and Bluetooth protocols that require pairing codes are not supported, and some car Bluetooth is not supported.