This is BLACKPINK's heart-shaped hammer light stick. It makes a sound when you hit it. Light stick illumination confirmed. With Bluetooth. Purchased from Wererse SHOP. It has been stored in a dark place without being used, but there are some minor color fading and scratches due to aging. Please refrain from purchasing if you are sensitive to these details. A trading card case, a membership benefit, is also included. Instant purchase is OK. BLACK PINK Light Stick Jennie Jisoo Lisa Rosé