CONNECTION Bluetooth Version: v5.3, Operating Range: Up to 10m (32 feet), Built-in Battery: 400mAh Lithium Battery, Playback Time: 55H, Charging Time: 1.5H,
HEADPHONE, Speaker Unit: 40mm, Frequency: 20Hz - 20KHz, lmpedance: 32ohm, Sensitivity: 98dB, MICROPHONE, Mic. Type: ENC Single-Directional, Frequency:
100Hz - 10KHz, Sensitivity: -42dB, CABLE, USB Type-C Charging Cable: 50 cm