On placement

  • Do not set the unit in an inclined position.

  • Do not leave the unit in a place subject to high temperatures, such as direct sunlight, near a heat source or under lighting equipment.

  • Do not use or leave the unit in a car.


  • Do not use or leave the unit in an extremely cold or hot environment (temperature outside the range of 5 °C – 35 °C (41 °F – 95 °F)). If the unit is used or left in outside the above range, the unit may automatically stop to protect internal circuitry.

  • At high temperature, the charging may stop or the volume may reduce to protect the battery.

  • When you find the charge indicator flashing, charge the battery. By charging the battery after the indicator starts flashing, you can use the battery longer.

  • Even if you do not intend to use the unit for a long time, charge the battery to its full capacity once every 6 months to maintain its performance.