Grado has been in the audio business since the '50s, and they take their reputation seriously. As such, they took their time developing a true wireless earphone, and the GT220s are the result. Their compact black bodies house custom mini-drivers to deliver the neutral, lively sound the company is known for. They also integrate touch controls, a built-in microphone for calls and voice control, and a battery that lasts up to six hours per charge. The carrying case adds another five full charges and supports recharging both wirelessly and over USB-C.
Bluetooth: 5.0 / Battery Life: 36 hours / Headphone Battery: 6 hours; 50mAH / Case Battery: 5 full charges; 500mAH / Charging: USB-C, Wireless; 2 Hours / Codec: aptX, AAC, SBC / Frequency Response: 20Hz~20KHz / Nominal Impedance: 32ohms