Rechargeable Bark Control Heart another option would be to

another option would be to purchase 4 D-QL

The system also has a positive tone to reward good behaviors as well as a negative tone to counter undesirable ones

for example

5 Antique Bronze Campione Medallion

Finish:Coffee Bronze

Rechargeable Bark Control Heart another option would be toThe SportDog NoBark 10R collar lets you select from Temperament Learning, Progressing Correction, or User Selected Correction modes. PerfectBark technology provides firm, fair and consistent bark control, requiring BOTH vibration AND sound to trigger a correction. The automatic safety shut off eliminates the risk of over correction. Hear the quiet?