Features 1.PERFECT REPLACEMENT: our wireless earbuds charging case is highly reproduced in appearance and functionality from the original for iOS 3 charging case. It is the perfect replacement for storing and charging your for iOS 3 earbuds. 2.HIGH CAPACITY BATTERY: The charging case has a built in 620mAh battery that can be fully charged in 2 hours and can fully charge your earbuds up to 5 times. Fast charging headphones, 20 minutes of charging can support 3 hours of listening. 3.PAIRING SYNC BUTTON: Bluetooth pairing sync button allows you to enjoy sensitive Bluetooth pairing. And you can easily monitor the battery level of the charging case and earbuds by connecting your cell phone. 4.WIRELESS AND WIRED CHARGING: This earbud charging case supports two charging methods, allowing you to enjoy convenient and fast charging. 5.CHARGING PROTECTION: Automatic stop charging protection at full power. Support overvoltage, overcurrent, overtemperature and overcharging protection. Over temperature and overcharge protection. specificationItem Type: Earbuds Charging Case Model: D04 Material: Plastic, Electronics Input: 5V 0.3A Wireless Input: 5V 0.5A Support Replacement Model: for iOS 3 Earbuds Charging Case Charging Method of The Electric Compartment: Wired Charging Or Wireless Charging Battery Type: Built in 620mAh Lithium Battery (included) PackageList 1 x Charging Case 1 x Instruction Manual