Casni CS-524 is a wired earphone model, not a Bluetooth headset. Here's the information I could gather:
Specifications
Speaker Size: 10mm
Impedance: 32Ω
Sensitivity: 105dB
Frequency Response: 20Hz – 20kHz
Cable Length: Approximately 1.2 meters
Connector: 3.5mm stereo jack
Microphone: Built-in for hands-free calling
Controls: Inline remote with play/pause and volume control
Compatibility: Compatible with devices featuring a 3.5mm audio jack
Included Accessories
Protective Carrying Case: A compact, hard-shell case to store and protect the earphones when not in use.
SKU: #03020129
