AirNotch Pro is the first keyring Bluetooth tracker in the world with replaceable batteries, Android & Apple compatibility and 360° omnidirectional sound.Bluetooth trackerThe white versions of AirNotch Pro exclusively use the Android Find My Device network, while the black one is only working with Apple’s network. Thanks to a Bluetooth signal, it detects devices within the Android or Apple’s network to triangulate and locate your keys or wallet anywhere in the world.Find it with 360° omnidirectional soundIf your keys are hiding nearby, use the Android or Apple Find My app to make AirNotch Pro emit a powerful 360° omnidirectional sound. With two buzzers placed on opposite sides of the product, measuring 20mm (0.8in) and 15mm (0.6in) in diameter, the sound can be heard from any angle, even in narrow spaces. You can also ask Google or Siri to help locate your keys or wallet by making them beep.Left behind reminderAs soon as you leave your AirNotch™ Pro behind, you'll receive an immediate notification through the Apple Find My app–if you have the black colorway. This software feature is currently available only on Apple's network. This does not depend on Rolling Square.Replaceable batteriesAirNotch™ Pro comes with 2x CR2032 replaceable button batteries, ensuring 20 months of uninterrupted detection of your keys or favorite belongings. When the batteries need replacing, you can easily open the battery compartment using the included metal ring to swap them out.Glowing in the darkAirNotch Pro is the first tracker to feature photoluminescent parts that glow in the dark. Inspired by the precision of Swiss luxury watches, we've designed it to help you find your keys in the dark depths of a backpack, purse, or under the couch, while making it perfect for quiet places where sound is not an option.IP68 waterproof, impact-proof, dust-proofWe've meticulously engineered AirNotch Pro to be robust and waterproof, with two premium ribbed ABS plastic shells, a sturdy CNC-machined anodized aluminum frame, and custom gaskets for IP68 waterproofing. Everything is secured with ten durable Torx screws.AirNotch Pro features a solid CNC-anodized aluminum hook, engineered to attach directly to your keys without needing an additional keyring accessory. It has been built on a sandwich-design concept, aiming to pack the best battery life, loudness, and sturdiness available for such a compact device.Designed with love ❤️️ in Switzerland