Sennheiser PX 210 BT Instructions for Use - Page 9
Putting the PX 210 BT into operation, Charging the battery pack - bluetooth headphones
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Putting the PX 210 BT into operation Putting the PX 210 BT into operation Before using the PX 210 BT for the first time, remove the protection strip from the battery pack. Charging the battery pack ̈ Before using the battery pack for the first time, charge it for at least 3h 3 hours. When charging the battery pack, the LED ¶ on the battery pack lights up red. When the battery pack is fully charged, the LED ¶ on the battery pack lights up green. ¶ 1 When the battery pack is almost flat, the LED ቢ on the headphones 3s flashes red. You hear a short, negative acknowledgement tone. The operating time of the battery pack depends on the device settings, the listening situation and the audio sources used. Type of use Bluetooth technology Operating time 10 hours Remove the battery pack if the headphones will not be used for extended periods of time. You can also charge the battery pack while using the headphones. 8