AirTag GPS Pet Tracker Collar For cats, small dogs, safe Smartphone compatible, adjustable, sturdy and durable, with reflective design, lightweight, shockproof, waterproof, dustproof, anti-loss, washable Red cat collar with reflective function, a design that stands out even in dark places. - Color: Red - With bell * Batteries can also be inserted. (3V lithium battery) In that case, we will charge 200 yen for the battery.