Any QI enabled device like iPhone X/ 8/8Plus, Galaxy, Samsung S7,S7 Edge, S6,S6 Edge, Nexus 4/5/6 (NOTE: Other device have no wireless charging function except putting on extra receivers.)
Starts the moment you place down any Qi-enabled device or device equipped with a Qi-compatible cover. No cables or USB interface required. Input: AT LEAST 5V/2A; Output: 5V/1A Wireless Charger,Universal Wireless Charger,Portable Wireless Charger,Mobile Wireless Charger Shenzhen Waweis Technology Co., Ltd. , https://www.szwaweischarger.com
In order for the SN72310 voltage follower op amp to drive the headphone, the complementary transistor output stage provides the required low impedance. The power supply is 12V. -- "Design Engineer's Linear and Interface Circuit Data Book", Texas Instruments, Dallas, Texas, 1973, P4-41