I can provide a large number of spare parts for old PCs.
eBay
AM FM Mini Radio AM/FM Dual Band Portable Pocket Radios With Loud Speaker HiFi Music Player Elder Radio Battery Powered 3.5mm
Aliexpress UK
During the test, first set the frequency of the signal source input to the transceiver to -100DB or any value. The intercom has audio output, and then reduce the output strength of the signal source.
eBay
Portable FM Radio Shower Radio IPX7 Waterproof 360 Degrees Surround Sound Portable FM Radio with Top Handle for Bathroom Outdoor
Aliexpress UK
Portable Bluetooth Speaker handheld Dual Speakers Party Stereo Subwoofer RGB Lights Karaoke Heavy Bass Features: 1.Bluetooth 5.0 Chip: Lower power consumption, more stable connection and faster transmission. Compatible with smartphones, tablets and any other Bluetooth-enabled devices within 10m/32ft. No cable and no hassle. 2.Dual Speaker, HiFi Stereo, Deep Bass: Dual 4-inch speaker deliver more powerful bass, clearer mids and highs even when the volume is cranked up. No sound distortion. The original feeling about your favorite music remains. 3.RGB Light Show: The wonderful light react and phase in time with the beat, included 7 RGB colors and 3 modes, give your party an exciting atmosphere. .
eBay
DP-666 TEF6686 Radio High Sensitivity Full Band FM AM Short Wave Radio with LCD Display FM/LW/MW/SW Full Band Radio
Aliexpress UK
(1 x Portable radio. 16)Charging Way：Base Charging / USB Charging. 17)Stand-by current: 72mA (The average current is 36mA in the power-saving state). 1)Model Number: BF-1909. 13) Frequencystability:±2.5ppm.
eBay
SI4732 0.5-108mhz Pocket Mini Radio LSB USB AM FM FM/AM Radio 1.9inch IPS Screen All Band Radio Receiver with Antenna
Aliexpress UK
BC-09 Rechargeable Battery Pack Handheld Radio 6 Cells Transceiver CB FM BATTERY
eBay
Car Antenna Set Radio SMA/SMB Amplified Splitter AM FM Radio Antenna Aerial Kit Active Amplified DAB+FM/AM Radio Antenna
Aliexpress UK
DSP chip with good performance and stable reception, using DSP chip for stronger signal, clear reception and no noise. Mini LED Lighting Finger Board Colorful Skateboard Kids Children Toy Kid Gifts V.
eBay
FM Radio Antenna FM F-Head Sheep Horn Antenna for Car FM TV Radio Station 75 ohms F Female Head to TV3.5 Mono
Aliexpress UK
ADVANCED PERFORMANCE: Mini digital radio adopts high-end digital chip, high sensitivity, accurate frequency reception, stereo output, stable performance, it is a professional and practical radio with headphones.
eBay
Aircraft Band Radio HRD‑767 Portable Radio Aircraft Band Automatic Power Off FM/AM/AIR Radio with Earphone Radio with Earphone
Aliexpress UK
Wide Frequency Range: This shortwave radio features excellent reception and covers a wide frequency range, providing you with access to a variety of radio stations and programs. Compact and Portable: With its compact size and lightweight design, this transistor radio is easy to carry and fits perfectly in your pocket or bag.
eBay
Emergency Pocket Radio FM AM SW Radio with HD Display Screen Battery Operated Radio Pointer Pocket Radio for Senior Home Walking
Aliexpress UK