Design and features:This Bluetooth wireless portable ear-insert model provides very good sound. Although it lacks active noise reduction, the ear plug-like design helps to reduce both outside noise and sound leaking out into your environment. The GT220 has a volume control plus an integrated microphone and player function controls. Additional features include Either earpiece can be used alone for one ear monitoring of Bluetooth streamed audio and telephone communications (tested, but not specified by mfr). Charging/carrying case has built-in rechargeable battery that the manufacturer claims can be used to recharge the earphone batteries 5 times for an additional 30 hrs. of playtime for a total of 36 hrs, can be recharged via USB cable or with optional Qi compatible wireless charging mat. Has touch sensitive volume, music player transport, call connect/disconnect, and digital voice assistant activation controls. Has power on/off, Bluetooth connect/disconnect alert tones and voice announcements, and low battery voice announcement. Supports digital voice assistants when used with Bluetooth devices that have those features and that, if needed, have the appropriate apps installed. Bluetooth connected Apple mobile devices using iOS Version 5 and above will show the battery level. This model comes with three pairs of ear pieces in various sizes, USB-A to USB-C connector charging cable, charging cradle/recharger and battery/carrying case.
Sound quality:We found the GT220 delivers sound quality that falls in the very good range - it reproduces music and voice very well although it does have some noticeable sonic quirks. The bass (as in bass drums, bass guitars, stand-up bass, etc.) has good impact and goes deep, but is a bit prominent and somewhat boomy. The midrange (voices, guitars, horns, etc.) is a touch thin and a bit grainy. The treble (cymbals, the upper range of violins, etc.) is extended but is a bit prominent, sizzly (sounds that should have a delicate shimmer have a sound reminiscent of bacon frying), and dry. The sound also has a good sense of liveliness and is somewhat open--sound-wise it almost seems like you don't have anything plugging up your ears and does a good job of recovering room ambience. Mixed character - warm bass with neutral midrange and treble. The overall sound can best be summarized as somewhat bassy but otherwise a touch thin.
Comfort and Fit:We found that these earphones as typical of in-ear models produce a sense of pressure in the ear canal opening that might be uncomfortable for some.
Small
Users with small ear bowls might find that the earphone body feels a bit bulky in their ear bowl and that they stick out too far and feel like they may lever out of place and are mostly held in place by the section of the earphone that is inserted in the ear canal, but that they will generally stay in place during casual use.
Medium
Users with medium sized ear bowls will probably find that this model fits and stays in place with no problems for casual use and that they are stable even during fairly vigorous head movement.
Large
Users with larger sized ear bowls will probably find that this model fits and stays in place with no problems and that they are fine for casual use, but they may shake loose during fairly vigorous head movements.
Incidental contact with the touch controls can cause unintentional playing or pausing.
