ITEM NAME:4-Pin RJ9 Monaural Headset, Hands-Free Call Center Headphone for Desk Phones Description: High clear and sharp voice communication. Compatible with most of call center telephone and digital telephone. Extremely soft cushion, make sure long time wearing comfortable. Durable, suit for 7*24 hours high frequency using. Earphone jack: RJ9 Specification: Type: Headset Color: Black Material: ABS Whether wireless headphones: wired headphones With or without a microphone: Yes Sound principle: dynamic circle Frequency response range: 18-20000 (Hz) Impedance: 150 (ÃŽ ©) Sensitivity: 118 (dB) Distortion rate: 0.1 (%) Wire length: about 2 (m) Number storage function: Yes Uses: ordinary headphones, professional custom, universal, noise canceling headphones, voice headphones, computer headphones, traffic headsets Package Includes: 1 Piece Headset SKU: DMO0019945968009353.Earphone jack: RJ9. Type: Headset. 1 Piece Headset. With or without a microphone: Yes. Uses: ordinary headphones, professional custom, universal, noise canceling headphones, voice headphones, computer headphones, traffic headsets.
