Parameter – Model Number: i12 tws – Bluetooth version: 5.0 – Charging box battery capacity: 300 mAh – Headphone battery capacity: 35 mAh – Charging time: 70 minutes – Talking Time: About 4 hours – Music Time: 2-3 Hours – Charge box to charge the headset: About 3-4 times Functions – New pop up animation connect for IOS (Open the lid need to take out the Earbuds) – Android smartphone open the lid to search bluetooth name to pairing – Binaural call, left and right headphones can be used separately – Auto power on / auto pair / automatic connection – support Siri calling – Multi-function touch button – Support previous track / next track Package includes: 2 Bluetooth mini headphones (left and right headphones) 1 Charging box 1 USB charging cable 1 x user manual