This versatile 3.7V 480mAh rechargeable lithium battery (model KP 450930) is designed specifically for portable electronic devices like Bluetooth headsets, neckbands, and speakers. The compact form factor makes it ideal for DIY projects and device repairs where space is at a premium. With reliable power delivery and a 480mAh capacity, this battery provides dependable performance for your wireless audio accessories. The battery features standard red and black wire leads for easy installation. Perfect for replacing worn-out batteries in compatible devices or powering your custom electronics projects. Please note that proper handling and charging protocols should be followed when working with lithium batteries. Verify compatibility with your specific device model before purchase.