2025 Gold Award EarFun Air Pro 4 Wireless Bluetooth 50dB Adaptive Hybrid QCC3091 aptX Lossless LDAC Snapdragon Up to 52 Hours of AI PSE Wear Detection

--------------------------------------------------- 【Voltage Compatibility】 Our products are selected to support international voltage ranges (e.g. 100–240V). However, please make sure your local voltage is compatible before use, as incorrect voltage may still cause 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 appropriate voltage or equipment. --------------------------------------------------- 🏅 [Advanced Technology Solution & aptX Lossless Audio Transmission] EarFun Air Pro 4 won the VGP Gold Award for two consecutive years in 2024 and 2025, and also won the 2025 Best Value Award. Equipped with Qualcomm's cutting-edge chip, the QCC3091, it supports the latest Bluetooth standard (v5.4) and the Snapdragon Sound audio solution. It delivers high-quality sound and ultra-low latency. Support for aptX Lossless ensures high-quality wireless music playback at up to 96kHz/24bit (approximately 1.1-1.2Mbps) in a stable wireless environment. It also supports LDAC, transmitting an overwhelming amount of data—approximately three times that of CD (44.1kHz/16bit)—at a maximum bitrate of 990kbps, preserving the finest details of your music and allowing you to enjoy the truest, most pristine sound. *Please note: LDAC, aptX Lossless, and LE Audio are not available on iOS devices. Compatible devices are required. If you would like to use the codec on other devices from an iOS app, please contact our support. 🏅 [Advanced Noise Cancellation / Intelligent Wear Detection] Our unique noise canceling technology has evolved to QuietSmart 3.0. New adaptive noise canceling technology adjusts noise reduction levels based on ambient noise levels, achieving up to 50dB of noise reduction. Intelligent wear detection automatically pauses music when you remove the earphones and resumes playback immediately when you put them back on. If noise cancellation doesn't work or music stops when wear detection is activated, check that the earphones are properly fitted and disable this function if necessary. 🏅 [High-Quality Calls with Six Microphones and AI Technology / Low-Latency Game Mode] Utilizing three high-performance microphones on each side, these headphones support "cVc 8.0," which filters out noise from your voice. Even in noisy environments, your voice is clearer to the other party. By enabling Game Mode in the EarFun Audio app, you can reduce wireless audio latency to a maximum of 50ms (0.05 seconds), eliminating noticeable audio and video synchronization issues. 🏅【Up to 52 Hours of Playtime/IPX5 Waterproof】Based on Qualcomm's latest S3 3rd Generation high-performance QCC3091 Bluetooth chip with extremely low power consumption, 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 included. Supports both wireless charging and USB-C charging. It also supports fast charging, with a 10-minute charge providing 2 hours of use. The earphones are IPX5 waterproof, so you can rest assured even if they get wet or sweat during exercise. Note: The charging box is not waterproof, so please keep it dry. 🏅 [Supports New LE Audio and Auracast Technologies] Supports the new generation Bluetooth standard LE Audio and AURACAST wireless shared listening technology, opening up new ways to connect with the world. With AURACAST Broadcast, you can join a Wi-Fi network just like searching for one, connect your device, and receive broadcasts (such as boarding broadcasts and standby broadcasts) without worrying about missing a broadcast. *LE Audio and AURACAST will be available after a firmware update. 🏅【Multi-point Connection and Google Fast Pair Support】Supports the latest Bluetooth 5.4 standard, providing faster and more stable connections. In addition to the multi-point function that allows you to connect two devices simultaneously, it also supports Google Fast Pair for quick and easy pairing with Android devices. Note: 1. Regularly wipe the charging terminals of the earphones and charging case thoroughly with a cotton swab soaked in alcohol to prevent poor charging due to sweat or dirt. 2. The earphones and charging case are precision electronic components, so please be careful of impacts and drops. 3. The charging case is not waterproof, so do not get it wet or place it in a humid location. 4. Use the included earbuds. If you use separately purchased earbuds, make sure they are the right size and do not wobble when placed in the charging case. Alternatively, remove the earbuds before placing them in the charging case. ⑤ To use the aptX Lossless and LDAC codecs, you need a device that supports them. You also need to install the EarFun Audio app on your Android smartphone and enable LDAC using the app (aptX Lossless is enabled by default). LDAC and aptX Lossless are not available on iOS systems such as iPhones and iPads. ⑥ Due to technical limitations, LDAC is prone to signal congestion. Therefore, keep your device and earphones within a range of 1 meter and remove any obstructions. You can also change the LDAC bitrate to 330kbps in your device's developer options. If you still experience severe congestion, try using another codec such as aptX. ⑦ Keep the earphones clean and dry, and regularly clean them of sweat, dirt, and other foreign matter. ⑧ When connecting multiple devices, the earphone volume may be synchronized with one of the connected devices. To avoid discomfort when switching, be careful not to have too large a volume difference between the devices. ⑨ When using the earphones, avoid crowded environments or environments with strong radio interference, such as Wi-Fi routers or microwave ovens. ⑩ If you experience problems with the earphones, update the firmware, reset the earphones, delete old Bluetooth pairing records, and then reconnect them. GOOD