Pet Acoustics Pet Tunes Calming Music Dog Speaker Plays calming, frequency-modified music that’s clinically proven and veterinarian-approved to reduce stress and calm nervous canine behaviors. Can also be given as needed for stressful situations like during travel, grooming, separation anxiety or when there are loud noises present, like during thunderstorms. Small, lightweight design is perfect to place by your pup’s bed, or hang from lanyard. Speaker is Bluetooth capable and comes with a Micro SD card pre-loaded with 90 minutes of music. Built-in lithium battery is rechargeable on most laptops and computers with its USB charging cord; to play 24/7, simply plug into a USB wall adapter (not included). Help your pal tune into a calm, stress-free state of mind with the Pet Acoustics Pet Tunes Calming Music Dog Speaker. This Bluetooth® speaker comes pre-loaded with 90 minutes of music developed by a sound behaviorist to reduce stress and calm nervous canines. EUC Offers welcome!