The banana plug makes speaker wire installation easier and is ideal for use with A/V receivers, amplifiers, surround sound systems, etc. The ABS housing, insulating material, pure copper and gold-plated surface, oxidation and corrosion resistance ensure more consistent sound quality. The 90 degree right angle design saves energy and space. The red/black combination is used for coding and identifying speaker wires. Easy installation, no soldering required. The 4mm banana plug is compatible with 12AWG to 20AWG speaker wires. L-shaped banana plugs are used for speaker wires, wall panels, cinema audio/video receivers, home theaters, amplifiers and audio systems.< /p> Product Description Function: 1. 4mm right angle banana plug made of gold plated copper. 2. Wear-resistant design, L-shaped, good contact effect. 3. Plug diameter: 4mm. 4. The snap ring uses a red-black code to identify the polarity. 5. Compatible with speaker cables from 12AWG to 20AWG. 6. Compatible with most speakers.