Finally, a stylus made specifically for your smartphone. Snap attaches to your device for easy access on-the-go. Step-up your snapshots and make your text messages more personal with the precision stylus for iPhone and Android phones. Tip: 1.9mm, length: 12.1 cm, diameter: 4.3mm, weight: 9.3 g, compatibility: iPhone 5 and newer and Android 5.0 and newer, material: anodized aluminum barrel with stainless steel details, battery life: Battery life continuous use: 7hrs, charging time: 1 hr., connectivity: Bluetooth 4.0 for remote shutter, how it attaches: snap magnetically attaches to your phone With a small metal plate that adheres to the back of any phone or smooth case surface.