- Wholesale Noise Canceling USB Connector Headset Microphone for Computer
- 2017-12-11 04:09
- Model Number: RKTU02 Brand Name: Rayking Key Specifications/Special Features: Microphone headset details:Hearing protection: International standard hearing protection functionDirectional: UnidirectionalMicrophone sensitivity: -52dBSpeaker impe...
- The Most Popular Noise Cancelling Microphone Headset for Telecom Operators
- 2017-10-18 13:53
- Model Number: RKHP128 Brand Name: Rayking Key Specifications/Special Features: Microphone headset details:Hearing protection: International standard hearing protection functionDirectional: UnidirectionalMicrophone sensitivity: -38dB±3dBMicroph...
- Electric use USB headset for calling center, China factory price
- 2017-10-01 08:55
- Model Number: RKT11-1 Brand Name: Rayking Key Specifications/Special Features: SpecificationSpeaker:Sensitivity: 113 ±3dB (at178mV1kHz)Impedance: 150 ±5Ω (at1kHz)Frequency response: 100Hz-10KHzDistortionfactor: ≤5% (at178mv1KHZ)Dimension: Φ28mmM...
- Multiple plugs handsfree binaural headsets with mic
- 2017-09-01 12:16
- Model Number: RKT12 Brand Name: Rayking Key Specifications/Special Features: SpecificationSpeaker:Sensitivity: 113±3dB(at178mV1KHz)Impedance: 150±5Ω(at1KHZ)Frequencyresponse: 100Hz-10KHzDistortionfactor: ≤5%(at178mv1KHZ)Dimension: Φ28mmMic:Sensi...
- Binaural call center headset, soft ear cover, retractable length noise cancelling
- 2017-08-30 05:59
- Model Number: RKTD Brand Name: Rayking Key Specifications/Special Features: SpecificationBinaural call center headsetHP228RJ biliteral headphone,2800mm matti PU cable,USB connector,PU leather ear cover,Noise cancelling Shipping Inform...
- Call Center Telephone with Noise Cancellation Headset
- 2017-07-26 00:20
- Model Number: RK228 Brand Name: Rayking Key Specifications/Special Features: SpecificationSpeaker:Sensitivity: 113±3dB (at178mV1KHz)Impedance: 150±5Ω (at1KHz)Frequencyresponse: 100Hz-10KHzDistortionfactor: ≤5% (at178mv1KHz)Dimensions: Φ28mmMic:S...