I purchased this from the official online store, but I'm selling it because I haven't had a chance to use it. Compatibility: Osmo 360 Osmo Action 5 Pro Osmo Action 4 [Features] Wear it on your wrist or attach it to a handlebar for remote control when starting video recording. The built-in GPS records data such as riding data, which can be integrated into videos using the DJI Mimo app and displayed as an overlay on the video. [Included Items] Osmo Action GPS Built-in Bluetooth Remote Controller × 1, Osmo Action GPS Built-in Bluetooth Remote Controller Wrist Strap (Long) × 1, Osmo Action GPS Built-in Bluetooth Remote Controller Wrist Strap (Short) × 1 [Specifications] Osmo Action GPS Built-in Bluetooth Remote Controller Weight: 26 g Size: 40.45 × 38.6 × 19.9 mm (Length × Width × Height) Capacity: 270 mAh Operating Temperature: -10°C to 45°C Waterproof Level: IPX7