More Details:













Specification:
Brand Name: ZHDA
Model Number: ZD100

 Horn Type: Bone Conduction Loudspeaker

 Sensitivity: 123 + 5dB

 Microphone: -42dB + 3dB

 Frequency range: 20Hz-20000Hz

 Battery: Lithium ion battery (360MAH)

 Playing Time: 8 hours

 Charging Time: < 3 hours

 Effective Range: 10 m
 
 Note:
 
  Red flashes quickly: the electricity shortage
 
  Long red light: charging
 
  A long blue light: complete charging
 
  Blue and red flashing alternately: pairing
 
  Blue slow variable flash: Bluetooth Headset and paired mobile phone is not connected.
  The reason is Headset or mobile phone not on, or the distance is more than 10 meters (30 feet).
 
  Blue flash slowly: connected \/ is \/ are playing flash audio call.
 
  Blue flashes quickly: receiving the call
 
 Package Included:
 1 X ZHDA Bone Bluetooth Earphone
 1 X Charging Cable
 1 X Earmuff
 1 X Instruction