Cobra's HighGear externa speakers are designed to offer an exceptional combination of unsurpassed power handling, great sound, rugged construction and stunning looks. The HG S300 is a noise-cancelling extension speaker that fits all Cobra mobile CB radios.

- 15 Watt Power Handling Capability
- 4-Inch Speaker with 5.5 oz Magnet
- Switchable Noise Filter
- Shock-resistant construction
- Black Metal Mesh Grille