Headphones Headband Conditions:
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Model Number: STN-13
Type: Bluetooth Headset with Microphone.
Bluetooth version: V3.0 + EDR
Frequency response: 2.4-2.4835 GHz band ISM
TF card support card: 128M-32GB
Distance: 10/20 m
Sensitivity: -80dBm
Sepcification:
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Music format supported: MP3 / WMA
Slot: USB2.0
Range of FM radio compatible: 87.5-108.0 MHz
Driver unit: 40mm Diameter
Battery capacity: 250 mAh
Driver unit: 40mm
Sensitivity: $ number db s.p.l. At 1 kHz
Impedance: 320HM
Microphone unit: 4mm * 1.5mm-42dB
Energy rating: 40 mw
Frequency range: 20 HZ-20 KHz
Plug type: 3.5mm