HMC-K78
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