Qi Certified Automatic Opening/Closing Capacitor-Built-in Accessory Power Cigarette Socket Mount PPH2303 Only installed once. Operation confirmed. Fast Wireless Charging Automatic Opening/Closing Smartphone Holder (Qi Certified) Equipped with auto-scan function to improve charging efficiency and eliminate charging loss due to misalignment of the charging area. Features an auto-hold function that closes the arms simply by placing your smartphone. Built-in capacitor (power storage device) allows for opening and closing of the side arms even after the engine is turned off. Overcharge protection. Wireless charging ON/OFF switch. Flexible arm allows for adjustment to your preferred angle. Supports both vertical and horizontal smartphone placement. Wireless charging is possible even with a folio case, leather case, or silicone case, but charging may not be possible depending on the thickness and shape of the case. [Compatible Smartphone Size] Weight: Up to approx. 250g / Width: approx. 55-88mm / Thickness: approx. 20mm Developed by "Pellucid Co., Ltd. (Aichi Prefecture)," a car accessory and car wash product manufacturer with a long track record in the Japanese market. A 100% subsidiary of "COMTEC Co., Ltd.," a domestic drive recorder manufacturer.