The PH-88 is a single-sided super lightweight headset for the ultimate in daylong comfort, It offers a dynamic noise-canceling gooseneck microphone with a semi-rigid, fully adjustable boom for precise positioning, The high-quality wide band dynamic earphones are covered in moleskin for superior fit, isolation and frequency response, Color: Black, Connector Options: A4F, A4M, Dual 3, 5mm, A5M, 3, 5mm 4-conductor, Cord Flexibility: Coiled or straight, Cord Length: 6 ft (1, 8288 m), Impedance: 300 O, Microphone Impedance: 200 ?, Microphone Sensitivity: -65 dBV/Pa, Microphone Type: Dynamic Noise-Cancelling, Sides: Single-Sided, Speaker: Dynamic, Speaker Sensitivity: 109dB SPL/mW, SKU: TBALL9878