BQEYZ Earphone Spring 2 IEM Monitor 9 Layer Piezoelectric Ceramic DD Coaxial BA Single Crystal Copper CNC Aluminum Case In-Ear All-in-One 0.78mm

---------------------------------------------------------------------- 【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction. 【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary. 【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product. 【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. ---------------------------------------------------------------------- In-house manufactured custom driver: Tri-hybrid technology of 13mm coaxial dynamic driver + 9-layer piezo + balanced armature provides both more powerful sound and highly accurate and high-resolution sound. Frequency Transition: Featuring proprietary crossover technology that allows for smooth frequency transition from one driver to another.Frequency Transition: Custom designed in-house, Spring 2 features A proprietary crossover technology is used that allows for a smooth frequency transition to the driver. Design: Aluminum 5-axis CNC machined shell provides ergonomic comfort. When it comes to black, the faceplate part is red, but there is also a green version where the entire faceplate is green. Upgradable Cable: Spring 2 IEM features a 0.78mm 2-pin connector and uses the included 224-core single-crystalline copper cable, which is compatible with detachable cables. In addition to the cable, it also comes with a leather carrying case, silicone ear tips, and a cleaning brush. Driving Capacity: The combination of extremely low 32Ω impedance and high 110 dB sensitivity makes Spring 2 a fairly efficient IEM and a perfect companion for portable listening for many smartphone users.