HMC-K68
Product Features and specifications

Features：
1）Sharp rising Hi-energy sound with Titanium 10mm dia. ＆Hi Frequency finely
      from B.A. type Driver, ２Way.
2）The style of the battery case is fixed with a clip to prevent the battery box from
      shaking
3）Equipped with an embedded controller that can operate music, animation, and
      talk on the ear
4）Corresponding to high quality aptX/AAC decode
5)  MMCX detachable standard gold plated connector insert, decrease sound destructive,
     up to 3000 times circle life

Communication system :                  Bluetooth version 4.0
RF power output :                              0.7mW EIRP
Maximum communication range :   Line of sight - approx.10m(33’)
Frequency band  :                             2.4GHz(2.402 GHz to 2.480 GHz)
Support codec :                                 Qualcomm® aptXTM audio,AAC,SBC
Type :                                                  Dynamic
Driver :                                                Moving iron unit+GIF 8.6mm / Unit
                                                             moving iron+10mm
Sensitivity :                                         108 dB/mW
Frequency response :                       5 to 40,000 Hz
Impedance :                                       12 Ω +16 Ω
Operating time :                                 Continuous transmission time including
                                                             music playback time:Max approx. 5 hours* 
                                                            Continuous standby time:Max approx. 200
                                                             hours*
Other
Power supply :                                  DC 3.7 V lithium polymer battery
Charging time :                                 Approx. 2 hours*
Operating time  :                               Continuous transmission time
Continuous standby time :              Max.approx.200 hours*
Weight :                                              17 g(0.6 oz)

Accessories：
USB charging line (Type-A/Micro USB Type-B)
EarPiece(S,M,L)、
Clip，
Storage bag