FiiO Snowsky Retro Nano Bluetooth USB DAC and Headphone Amplifier (Open Box) Color:White It has a USB port

It has a USB port for data transfer and battery charging

and user-friendly experience

these Bluetooth® headphones can be paired with two Bluetooth® devices at the same time

Even if the audio chain is measured all the way from wireless transmission through chip decoding to earphone playback

Large LCD Touchscreen for Better User Interaction

FiiO Snowsky Retro Nano Bluetooth USB DAC and Headphone Amplifier (Open Box) Color:White It has a USB portFiiO Snowsky Retro Nano Bluetooth USB DAC AMP with LDAC, aptX Adaptive, aptX LL (3. 5mm Unbalanced & 4. 4mm Balanced Output) Dynamic retro UI: The device features a variety of fun and interactive UIs, with a design that closely replicates the classic cassette player, both in shape and interface, offering a nostalgic yet modern user experience. It uses a detachable, rechargeable 3. 7V lithium battery, providing up to 7. 5 hours of continuous playback