?Within 24 hours?If you have any questions about the headphone adapter, please feel free to contact us, we will reply you within 24 hours. [Strong compatibility]This iPhone headphone splitter Designed for 14, 13, 12, 11, or any iPhone without aux input or headphone jack so you can still utilize wired headphones or speakers that don't have Bluetooth capabilities. [Quick Charge]This iPhone splitter has a 2.4A fast charge function, and the charging speed is increased by 1.5 times. You don’t have to worry about running out of battery while listening to music or movies. The headphone splitter is Flexible ABS strain relief has been tested to withstand over 5000plus cycles of 180 degree cable bending, making these made to last and perfect for traveling. [High fidelity sound quality]This iPhone headphone adapter uses an upgraded DAC chip, 100% copper core, can quickly read data to ensure the stability and fidelity of sound transmission, up to 96KHz and 24-bit audio output, for your entertainment Provide high fidelity lossless audio experience. [Multi-function] Power your iPhone and listen to music at the same time with a 4-in-1 3.5mm to Lightning adapter that allows you to plug in headphones or auxiliary cable while charging your phone.