Belka DSP shortwave receiver with active Ferrite Antenna

Belka-DSP mini Shortwave Receiver with Active Ferrite Antenna. The receiver have not a Speaker, 3.5mm Audio Jack only. I connected the receiver with a Bluetooth 5.0 Audio transmitter. This is a little Receiver with good performance using inside the House. The Flat Tv Computer and LED Lamp is running in the near. With normal telescope Antenna have no so good performance. With telescope antenna is receiving very bad inside the house. Ferrite Antennas and magnetic loops best choice receiving sw inside house.