Refer to the importer's information for warranty details.
Charging: Use a USB to AC adapter (5V DC output) to charge. Red indicator means charging, off means complete. Alarm sounds every 4 minutes when low. Operation not possible while charging.
Connecting (Pairing): Turn off headphones, press and hold POWER (7 sec) until red/blue flashes. Select "JVC HA-S90BN" or "JVC HA-S70BT" on device. Blue indicator confirms pairing. Enter "0000" if PIN is requested. NFC pairing also available by touching N-mark.
Power On/Off: ON: Blue indicator (1 sec), slow blue flash (connected), slow red flash (not connected). OFF: Red indicator (1 sec). Auto-off after 5 mins of no Bluetooth connection. First-time power on initiates pairing (red/blue flash).
Music Control: Play/pause (X1), skip track (X2), volume control (buttons 1, 2, 3). Noise canceling can be toggled ON/OFF.