Zoook Crescendo Bluetooth Neckband Stereo Earphones with Mic

• Bluetooth Version: V5.0
• Supported Profiles: HSP,HFP, A2DP, AVRCP,CVC
• Operating Frequency : 2.4 GHz – 2.48 GHz
• Frequency Response: 20Hz-20KHz
• Input Charging Power: DC5V
• Working distance : about 10m
• Battery Capacity: 90mAh
• Charging time: about 2h
• Playback time: about 5h
• Microphone: Built-in
• Product weight: 15g
• Available Colors: Black,Red, Green,Blue

WHAT’S IN THE BOX:

• 1x Bluetooth Stereo Neckband
• 1 x Micro USB Charging Cable
• 1 x User Manual
• 1 x Certificate of Authenticity