bem wireless party block User Manual page 8

Connection
Laptop / notebook / PC
As the Bluetooth© versions for these types of devices varies
greatly, the connection methods will differ as well. If you can
not connect with the Party Block using the previous method
instructed you may need to install a new version of the
Bluetooth© driver.
Please reference the instructions of device for details.
Speaker Placement
The Sender has built-in battery and is portable. This allows the
perfect placement of the sender for maximum distance.
The speaker can be set anywhere you like. Approximate range
is 50ft away from the sender (open area). The Party Block uses
5.8gHz signal so you're free to put the speakers where you like!
Charging
Connect your Party Block Sender to an outlet using the included
5V,2A power adapter. It will start charging the Sender.
The power indicator will slowly flash during charging and goes out
when it has reached a complete charge (Approx. 3.5 hours).
Connect the Satellite Speaker to an outlet using the included
12V,2A power adapter. The power indicator on speaker will
slowly flash during charging and goes out when it has reached a
complete charge (Approx. 4 hours).
Note: if the unit has not been used in the past 7 days please
charge for 30 minutes before using the Party Block.
8