High Tech Pet bark collars come in models to suit just about any situation. If you are looking for a no-shock collar check out the High Tech Super Hush Puppy Progressive Sonic Bark Collar. It uses an annoying high-frequency tone/beep to train your dog to stop barking.
Not sure if a high-frequency tone will stop a headstrong dog from barking? The High Tech Bark Terminator 2 Sound & Shock Bark Collar gives you the option to choose static shock correction or high-frequency tones.