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Extend the play time of your Bose S1 Pro+ Wireless System with an extra battery or replace an existing one. This lithium-ion battery provides up to 11 hours per charge and installs easily into the dedicated compartment on your S1 Pro+ for secure and reliable use.
2.4 GHz frequency
Plays up to 4 hours
Stores & charges in S1 Pro+
Onboard controls
