Can't say how they compare to Liberty 4 NC, but pretty good reviews overall
About this item
𝗩𝗚𝗣 𝟮𝟬𝟮4 𝗚𝗼𝗹𝗱 𝗔𝘄𝗮𝗿𝗱 & 𝗤𝘂𝗮𝗹𝗰𝗼𝗺𝗺 𝗟𝗮𝘁𝗲𝘀𝘁 𝗖𝗵𝗶𝗽 𝗤𝗖𝗖𝟯𝟬91: Qualcomm Snapdragon Sound with aptX Lossless. Featuring Qualcomm QCC3091 SoC with aptX Lossless Audio , Certified Snapdragon Sound, and Hi-Res Audio. EarFun Air Pro 4 wireless bluetooth earbuds deliver robust bass, articulate midrange, and sparkling treble.
Adaptive Hybrid Active Noise Cancelling up to 50dB: Premium noise cancelling powered by adaptive ANC technology and QuietSmart 3.0. EarFun Air Pro 4 noise cancelling earbud automatically detect your unique ear canal shape to achieve maximum noise-cancelling performance.
Support for LDAC, LE Audio, and LC3 codecs ensures compatibility with high-fidelity sources. AI Algorithm and 6 Mics ENC. Enhanced by 6 built-in microphones, advanced AI algorithms, and Qualcomm cVc 8.0 tech, the noise cancelling ear buds effectively eliminate background noise to improve vocal clarity during calls. Enjoy crystal -clear calls regardless of your surroundings.
52 Hours of Playtime and Quick Charge. Experience up to 11 hours of battery life on a single charge, and extend playback up to 52 hours with the USB-C charging case. A 10-minute fast charge can boost up to 2 hours of playtime.And the earbuds wireless supports IPX5 water resistant.
Multipoint Connection & Bluetooth 5.4. Combined with Bluetooth 5.4 and Multipoint Connection, the Bluetooth wireless earbuds can connect with two Bluetooth devices simultaneously, offering ultra-low power consumption, and the most secure connection. Use the integrated Google Fast Pair feature with Android devices.
Support customize the EQ to find your preferred sound. The earbuds can use the Sound Profile found in EarFun's companion Audio App to customize the EQ to find the perfect sound for you, we are committed to becoming your best music partner.
Connect Socially with Auracast. With Auracast Broadcast Audio you can share what you enjoy with others, tune into local broadcasts, and use the service with assistive listening systems (ALS).
I have the 3 and I will say they do make my Earfun.
Wife is looking for a new pair, I might upgrade to these and hand my 3s down