Stylish bluetooth mini-headset with changeable decorationBluetooth protocol: Version v1.1/v1.2Latest bluetooth technology, no line-of-sight problemWorldwide compatibilityFrequency:2.4- 2.4835 ghzFrequ

1. Stylish bluetooth mini-usb dongle with transparent housing2. Latest bluetooth technology, no line-of-sight problem3. Bluetooth v1.2 specification4. USB uhcl/ohcl spec 2.0 compliant5. Worldwide comp

1. Over the Head HeadsetThe conventional over the head handsfree provides extra comfort in a professional design. The headset is implemented with our noise canceling microphone, providing clear commun

Impedance: 32 ohmSPL:109 db/mwNorminal Power: 20 mwMax Power: 50mwFreq. Response: 130~7 kHZ

1.Sensitivity at 1KHz : 110+/-3 dB;2.Impedance : 32+/-15% Ohm;3.Speaker dia : 15.4mm;4.Mylar : 6u;5.Frequency response : 180-15000Hz;6.Input power : Nom2mw,Max3mw;7.Distortion : Less than 5% at 1KHz 2

1. Sensitivity at 1KHz:110+/-3 dB;2. Impedance:32+/-15% Ohm;3. Speaker dia:14.8mm;4. Mylar:6u;5. Frequency response:230-12000Hz;6. Input power: Nom2mw, Max4mw;7. Distortion: Less than 5% at 1KHz 2mw;8

Description:1. Sensitivity at 1khz:110+/-3 db;2. Impedance:32+/-15% ohm;3. Speaker dia:14.8mm;4. Mylar:6u;5. Frequency response:230-12000hz;6. Input power: Nom2mw, max4mw;7. Distortion: Less than 5% a

1. Noise cancellation2. Hear music at peace and quiet even in a noisy environment3. Sensitivity at 1khz:105+/-3 db4. Frequency response:20hz - 2,000hz5. Traveling foldable design availabe6. Distortion

1. Over the Head HeadsetThe conventional over the head handsfree provides extra comfort in a professional design. The headset is implemented with our noise canceling microphone, providing clear commun