Connect strategies: Wireless Bluetooth Software: For ZELLO Connection distance: 30M Supported working techniques: For Android 4.0 above, for IOS 8.0 above Battery: CR2032(want set up) Working hours: at the very least 200 days Wide Application: Suitable for automotive, bike, bicycle using, for straightforward intercom at any time How to make use of it: Step 1. Install the battery: Turn this button to take away the chip inside, set up the additional battery and switch the change subsequent to it to "ON". Step 2. Open the Wireless and Bluetooth on the cell phone. Step 3. Open the Zello app,click on"Options",click on"Push-to -Talk“,click on the button wait for some time,after join it is going to present "PTT-Z01",click on "PTT-Z01",select "Handto Talk. Step4. Click the button to make a communication. Matters Needing Attention: 1. The product is simply focused at Zello's software program units. 2. The product must be used with Bluetooth and community enabled. 3. Cannot be used whereas exiting Zello software program. 4. After connecting, there is no such thing as a must reconnect, you’ll be able to immediately function by opening the APP at all times on-line. 5. If this system is just not used for a very long time, you may as well ship it by frivolously touching the PPT button. 6. For apple telephones want to decide on whether or not to press buttons or trlgger. 7. You can specify a contact particular person or workforce, and press to make a name. Package Including: 1 x Wireless Bluetooth PTT Control Button 1 x CR2032 Battery 1 x User Manual 1 x Strap