The POW:COM interface enables concurrent battery charging at up to 150mA and data exchange between a charger cradle, an earpiece and a mobile phone. The interface needs only two pins per device, giving design flexibility and improving the reliability of charging operations. By implementing the POW:COM interface in earbuds, manufacturers can improve the user experience, giving enhanced communication capabilities and convenient charging. Furthermore, no bluetooth component is required in the charging cradle.

Example features:

• Show battery level of charging box on phone
• Automatically pair TWS with phone when opening charging case
• Accessory firmware updates
• Auto recharge (stop if full, start if uncharged)
• Detect left/right earbud
• Auto start-up when opening box (no button to start)