Connect methods: Wireless Bluetooth Software: Compatible with Zello app Connection distance: Up to 30 meters Supported operating systems: Android 4.0 and above, iOS 8.0 and above Battery: CR2032 (included) Working time: Up to 200 days on a single battery Wide application: Suitable for use while driving cars, motorcycles, or bicycles, enabling convenient hands-free intercom communication How to use: Step 1. Install the battery: Rotate the cover to access the battery compartment, insert the CR2032 battery, and turn the switch to “ON”. Step 2. Enable Bluetooth and wireless connectivity on your mobile device. Step 3. Open the Zello app, tap “Push-to-Talk”, then select the device named “PTT-Z01” from the list and choose “Hands-Free Talk”. Step 4. Press the button to begin voice communication. Important notes: 1. This device is designed exclusively for use with the Zello app. 2. Requires both Bluetooth and an active internet connection. 3. Cannot function when the Zello app is closed or running in the background without proper permissions. 4. Once paired, the device remains connected; simply open the Zello app to use. 5. If idle for extended periods, briefly press the PTT button to reactivate. 6. On some devices, users may need to configure button press or trigger settings within the Zello app. Color: Black Material: Plastic Package contents: 1 x Walkie Talkie Control Button Note: Color appearance may vary slightly due to screen settings and lighting conditions. Dimensions may vary by ±1–3 cm.