2(b). If you want to charge the headphones from an electrical outlet, connect the end of the cable of the Universal Power Adapter to the socket labeled 'DC In’ (refer to Fig 3) on the headphones. Connect the Universal Power Adapter to an electrical outlet.
Universal Power Adapter
Fig 5(b)
The headphones use lithium polymer battery. The headphones are capable of a continuous playtime of 5 hours. It takes about 2 hours 20 minutes to fully charge the battery.
Note: It is recommended that you completely charge the headphones before first use.
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