Immerse yourself in a truly wireless Hi-Res audio experience with the FIIO FW3 In-Ear Headphones in gray. These headphones feature a built-in DAC and architecture for an unparalleled sound experience. Equipped with a powerful AK4332 DAC and Qualcomm's latest QCC5141 Bluetooth chipset, the FW3 offers full Bluetooth V5.2 connectivity with support for high-resolution LHDC, AptX Adaptive, AptX, and more. The 10-band PEQ function allows for personalized sound adjustments, while the standard tuning of the FW3 ensures pure high-resolution audio clarity. With a battery life of up to 21 hours, you can enjoy hours of HiFi music on a single charge. Discover the perfect synergy of technology and sound with the FIIO FW3.