JoyBuds 511
CVC noise cancellation with Dual mocrophones for better voice calling quality
  • Bluetooth 5.0 version advantage with longer using time and stable connection.
  • CVC noise cancellation technology with dual microphones provides clear voice calling quality
  • Qualcomm high-end chip supports aptX codec audio transmission
  • One touch multiple button for music playing, song selecting, voice assistant calling and volume controlling
  • Professional toning technology to present real, balanced and superior sound quality
  • IPX7 water resistance provides more protection to resist rain and sweat.
  • Automatically power on/off, paring and connecting
  • 480 mAh charging case with battery indicator provides longer using cycle
  • In-ear and flat design avoid dropping
  • Three-size ear tips to satisfy with comfortable wearing
  • Comply with Android, iOS and windows devices via Bluetooth connection
Bluetooth version  Bluetooth 5.0 
Bluetooth ProfileHSP/HFP/A2DP/AVRCP 
Bluetooth codecaptX SBC AAC
Color Dark Grey
Bluetooth ChipQualcomm 3020  
Wireless transmission Range  10 meters  
Driver diameter  16ohm Φ6 
Sensitivity  Earbuds    91dB±3dB
Microphone  -38±3dB
Frequency Response  Earbuds    20Hz~20KHz
Microphone 50Hz~8000Hz
Impedance  16 ± 15%Ω 
Signal-to-noise ratio 61dB  
Input sound pressure level 94dB SPL  
Size  Earphone 25.1x22.8x24.5mm
Charging case  55x38x34.5mm 
Weight  Earphone 4.75g
Charging case 33g 
Operation Time  Standby time   120 hrs
Using time       6.5  hrs
Charging time    2 hrs
Battery type  Lithium polymer  
Earphone battery capacity  50mAh  3.7V   
Charging case capacity  480mAh   3.7V
Voltage  DC 5±0.25V 
Warranty  12 months  
Project Note File Size Update Download
User Manual TWS Bluetooth Earbuds JoyBuds 511 (V1.0) 1.6 MB 2020.05.08