EarFun Air Pro 4 Color: Black ==================== New, Unused Free Shipping Instant Purchase OK. ★ No price negotiations. ==================== 《Notes》 ※ Since this is an unused item, I have not checked its operation. ※ I am not responsible for initial scratches or defects of the product. ※ To prevent swapping, no refunds, returns, or complaints will be accepted under any circumstances after the buyer's payment is completed. ・【Advanced Technology Solution & aptX Lossless Lossless Audio Transmission】The EarFun Air Pro 4 uses Qualcomm's cutting-edge chip "QCC3091". It supports the latest Bluetooth standard (V5.4) and the latest audio solution "Snapdragon Sound", achieving high sound quality and low latency. ・【Advanced Noise Canceling / Intelligent Wearing Detection Function】The unique noise canceling technology has evolved to "QuietSmart 3.0". The "Adaptive Noise Canceling Technology", which changes the noise reduction level according to the surrounding noise level, has also been newly introduced, achieving a noise reduction of up to 50dB. ・【High-Quality Calls with 6 Microphones + AI Technology / Low-Latency Game Mode】Utilizing the 3 high-performance microphones on each of the left and right sides, it supports "cVc 8.0" which removes noise from the collected voice. Even in noisy environments, you can deliver an easy-to-hear voice to the other party. ・【Up to 52 Hours of Long Playback / IPX5 Waterproof Performance】Based on the extremely low power consumption of Qualcomm's latest S3 3rd generation high-performance QCC3091 Bluetooth chip, the Air Pro 4 can be used for up to 11 hours on a full charge, and up to 52 hours with the charging box. It supports two charging methods: wireless charging and USB-C charging. It also supports quick charging, allowing for 2 hours of use with a 10-minute charge. ・【Multi-Point Connection and Google Fast Pair Support】Compatible with the latest Bluetooth 5.4, the connection is faster and more stable. In addition to the multi-point function that allows simultaneous connection of two devices, it also supports Google Fast Pair, which allows for quick and comfortable pairing with Android devices.