Syed Imran Haider 
The OpenSwim Pro are an update from Shokz on its open-ear, waterproof headphones that are now available with Bluetooth streaming. They come with two additional listening modes and the built-in music player also boasts greater storage.
Design
The design of the Shokz OpenSwim Pro is similar to its predecessor, OpenSwim. The neckband design weighs less than before, as it has been reduced to 27.3g from 30g. There are two choices in terms of color; red and grey. The underside of the right arm comes with physical buttons as well as a proprietary charging port. You can use the controls to skip forward and back, adjust volume and change streaming modes. The left arm also has a multifunction button for pausing and playing audio and handling calls.
The headphones have been designed to be used during swimming due to which they have an IP68 rating. According to Shokz, the earphones come with a triple sealed design, which includes a waterproof membrane. You can wear them comfortably for extended periods of time and they come in a good carry case, along with a set of earplugs.
Features
You can stream audio with Bluetooth 5.4 and the Shokz OpenSwim Pro offer you a range of 10 meter. The storage has been improved from 4GB to 32GB. It supports a greater number of file formats than its predecessor, which include WMA, MP3, AAC, M4A, FLAC and APE. Whether you use MP3 or Bluetooth mode, there are EQ modes that you can use for customizing the sound within the app. The former comes with a Swim EQ and Standard mode, while the latter boasts vocal and standard modes.
As far as battery life is concerned, you can enjoy up to 9 hours when you are using Bluetooth, but music player mode gives you only 6 hours. The proprietary charging setup has also been modified. The OpenSwim Pro now come with a quick charge that was not available in its predecessor. This gives you a batter life of 3 hours after charging for 10 minutes.
Sound Quality
Similar to its predecessor, the OpenSwim Pro also boast bone conduction technology rather than air conduction. The purpose of the open-air approach is to deliver sound, but not block the ears. Transducers are used in bone conduction technology, which send sound to your ear via vibrations up your cheekbones. However, instead of the 9th generation of this technology, which is the latest available, Shokz has opted to use the 8th generation in these headphones, claiming it is due to the design.
Using the given earplugs when you are swimming ensures that you can get the best sound. Otherwise, you will notice a big difference in the sound. You will find the sound to be balanced for the most part and there is considerable warmth. Likewise, base also has a good presence. But, this can also vary depending on the mode in use.
The Verdict
Anyone who is looking for a solid pair of headphones when they go for a swim will certainly find the Shokz OpenSwim Pro quite an appealing choice. They are an excellent fit and very comfortable.
