<p>Bluetooth version: version 5.0</p> <p>Bluetooth distance: about 10 meters</p> <p>Standby time: 60 hours</p> <p>Listening to songs, talk time:&nbsp;<strong>about 3-4 hours</strong></p> <p>Charging time:&nbsp;<strong>about 1-2hour</strong></p> <p>Battery type: Lithium polymer battery</p> <p>Battery capacity: 90MAH</p> <p>Support agreement HEPHSPA2DAVRCP</p> <p>Material: ABS+plating+food silicone ear caps</p> <p>Frequency: 20Hz-20KHz</p> <p>Impedance: 32&Omega;</p> <p>Sensitivity: 85dB/mW</p> <p>Waterproof rating: IPX 5</p> <ul> <li>Compatible system: Suitable for mobile phones with Android 5.0 or higher or iOS 9.0 or higher.</li> </ul>