GD11 Bluetooth 5 Earphone.James Arthur) 4. OWS technology with directional sound.

•Single hands-free headset for right ear, microphone with ENC noise reduction system, reduces background noise to improve call quality. •Panoramic effect with high sound quality, with nuances, clear and detailed sound. OWS technology that does not completely block the ear. •Integrated controls on the side of the device: control playback (play, pause, skip), as well as answer, reject, and hang up calls. •Automatic connection (once paired on first use). •Bluetooth 5.4 latest generation with low consumption and long range. •High-capacity battery with up to 6 hours of battery life. •Includes Micro USB charging cable x1, instruction manual x1, hands-free headset x1. Power: 37mW Bluetooth version: 5.4 Bluetooth distance: about 10 meters Protocol: A2D / AVRCP / HFP / HSP Frequency range: 2.4-2.48GHz Battery: 40 mAh Charging time: about 1.5 hours Phone call and music listening time: approximately 6 hours Impedance: 32Ω Sensitivity: 85dB/mW IPX5 waterproof rating, protection against sweat, dust, and splashes. Do not wet, submerge, put in the shower or expose to environments with condensation, steam, etc. It has CE and RoHS certificates. ABS, metal alloy.