- Electric use USB headset for calling center, China factory price
- 2017-08-19 11:11
- 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...
- China manufacturer low price single ear headsets clip-on shirt for call center
- 2017-08-15 17:42
- Model Number: RKT11 Brand Name: Rayking Key Specifications/Special Features: SpecificationSpeaker:Sensitivity: 113±3dB(at178mV1KHz)Impedance: 150±5Ω(at1KHZ)Frequency response: 100Hz-10KHzDistortionfactor: ≤5%(at178mv1KHZ)Dimension: Φ28mmMic:Sens...
- SP268 Highest Quality Dual Ear Call Center Telephone Headset with Noise Cancellation Microphone
- 2017-08-11 18:05
- Model Number: RKSP268 Brand Name: Rayking Key Specifications/Special Features: SpecificationSpeaker:Sensitivity: 113±3dB(at178mV1KHz)Impedance: 150±5Ω(at1KHZ)Frequencyresponse: 100Hz-10KHzDistortionfactor: ≤5%(at178mv1KHZ)Dimension: Φ28mmMic:Sen...
- China price call center headsets with USB plug
- 2017-07-23 15:44
- Model Number: RKAJ16 Brand Name: Rayking Key Specifications/Special Features: SpecificationSpeaker:Sensitivity: 113±3dB(at178mV1KHz)Impedance: 150±5Ω(at1KHZ)FrequencyResponse: 100Hz-10KHzDistortionfactor: ≤5%(at178mv1KHZ)Dimension: Φ28mmMic:Sens...