Lenovo X9 supports single/binaural mode. The left and right earphones can be used separately. If one of your earphones has no sound, it may be set to single ear mode. You need to restore the binaural mode to use both earphones (specific setting method Please refer to the manual). In addition, you may check if there is a problem with your phone's audio source. Because some music and videos are output in mono, there is no sound from the left earphone.
Features:
Brand Name: Lenovo
Model Number: X9
BT Version: 5.0
Transmitting Distance: 10m/33ft
Drive Diameter: 13mm
Frequency Range: 20-20KHz
Sensitivity: 119±3dB
Impedance: 32Ω
Charging Case Battery Capacity: 3.7V 300mAh
Earbuds Battery Capacity (Each): 3.7V 30mAh
Music Play Time: about 4 hours (depends on music volume)
Charging Time: about 1.5 hours
Earbud Weight (Each): 3.3g/0.11oz
Package Size: 14.0 x 9.2 x 3.2cm/5.51 x 3.62 x 1.26in
