Best sound quality and convenience, Sony WF-SP900 cordfree Bluetooth sports earphones

Recently, as well as connection with playback devices such as smart phones, both units are wirelessly configured, and various kinds of cordfree Bluetooth earphones are available for convenient exercise and everyday use. Sony has introduced the WF-1000X, a high-quality sound product, but the WF-SP900 model has been released with high sound quality and convenience for sports.

 

 

 

The WF-SP900 models are equipped with the new sony BA driver to provide high quality sound and have stable wireless connectivity with NFMI type unit-to-unit connections. 

 

 

 

 

 

In particular, it has a dustproof / waterproof performance of IP68, so it provides a strong waterproof function that can be used while swiming beyond protection against rain and sweat. If you use a waterproof earpiece, you can dive for 30 minutes at a depth of 2m. The built-in 4GB memory also allows you to use it independently without a playback device such as a smart phone.
 

 

 

 

 

 

It is the appearance of the whole component. Earphone unit and charging case, lash cord, hybrid earbud and swimming earbud, arc supporter and charging cable are provided. 

 

 

 

 

 

The latest USB TYPE-C cable allows you to charge the battery by connecting the charging case. You can manage the files in the internal memory by connecting with a PC. 

 

 

 

 

 

The arc supporter is included for more stable fixation in the case of running or swimming, and it can be customized according to the user's three sizes. 

 

 

 

 

 

 

Hybrid earbuds with open nozzles and four swimming earbuds with clogs are provided, each of which can be customized according to usage and user's environment. 

 

 

 

 

 

You can use it safely underwater by connecting both units with a rish cord that prevents you from being lost during swimming. 

 

 

 

 

 

 

The weight of the unit body is about 7.3g on one side. It is a light level that is not burdened when worn. Each unit has buttons on the side and touch sensor on the outside. It has playback and stop, volume control, track movement and sound mode You can use various functions such as switching of use mode, Apple Shiri and Google assistant call without using a smart phone. 

 

 

 

 

 

The proximity sensor is located inside, and when the earphone is disconnected from the ear, playback stops, and it is convenient to carry out power and pairing automatically by inserting it into the charging case. 

 

 

 

 

 

The product is available in three colors, black, yellow and white, and is equipped with Sony's new BA (balanced amateur) driver. The playback frequency range is 20Hz ~ 20,000Hz and supports AAC wireless high-quality codec.
 

 

 

 

 

 

The charging case is somewhat larger and the dongle dongle. It can be stored even with an arc supporter installed. It is equipped with NFC sensor and can be easily paired with a support smart phone. 

 

 

 

 

 

 

It is composed of translucent cover, and the charging status of the case itself is indicated at the upper center, and the charging status of both units at the bottom can be confirmed from outside. 

 

 

 

 

 

 

Installing the Sony Headphone Connect app allows quick connection, battery level monitoring and sound / feature settings. 

 

 

 

 

 

 

 

If you use a sealed earphone, it may block the ambient noise. Built-in microphone allows you to listen to ambient noise and voices, so you can use it safely from the outside. Various equalizer settings allow you to set the band according to genre and user's preference. In addition, stable connection-oriented or sound quality mode changes to more flexible depending on the situation can be used. 

 

 

 

 

 

Various controls are possible without removing the phone using the side buttons and tap sensors. The buttons on the left unit perform sound mode, player mode conversion and pairing function, and the right unit can play / stop and track control, call connection and long press to run Apple series / Google assistant.

 

 

 

 

 

Sony WF-SP900 cord free Bluetooth earphone. The length of the unit is somewhat so that it is not completely housed inside the auricle, but it is possible to use it with a light weight and a thin thickness feeling. 

 

 

 

 

 

 

The biggest advantage of Sony's cordless Bluetooth earphones is the sound quality. The WF-SP900 model is equipped with a new BA driver that gives a very clean resolution and good range balance. Normally, these closed type products break down the overall balance due to the low-band cost. The high-end wired earphone is used for the satisfactory music listening due to the density but the low sound quality and the rich sound quality. 

 

 

 

 

 

 

The sound composition and fit vary according to the earpiece, and it is possible to attach a complementary foam tip, and it can be stored without any problem in the case of charging. Depending on your preference, you can use a separate foam tip to make the low end sound more rich and change it to a more comfortable fit.
 

 

 

 

 

 

 

The excellent stability of the connection ensures that there is no interference at all, even at distances of over 5 meters. Now, the negative evaluation of the connection stability that Sony Code Free products have had to change. 

 

 

 

 

 

 

 

 

 

 

 

 

It is lightweight and comfortable to wear and can be used even in severe sports situations such as running, and it has IP68 waterproof / dustproof grade, so there is no worry about rain or snow or pollution from sweat. Especially, it can be used during swimming with perfect waterproofing which can be used at depths of 2m to 30m. It is convenient because it can play music by earphone alone without using smartphone by using internal memory of 4GB capacity.

Sony WF-SP900 cord free Bluetooth earphones have excellent sound quality and various convenience features, and the connection stability is close to perfect. The only thing that is not enough is that the maximum volume is somewhat smaller than other products. If you can increase the volume according to domestic conditions through firmware update, it will not be better. End the reviews.