Tired of out of sync and need to re-sync if walking out of the bluetooth signal working range ( ~ 20 ft), This bluetooth music receiver is the solution. This new model has enhanced wireless working distance (up to 75 ft), twice or even triple of that of most similar devices sold on the market at ~18-25 ft. (For some cell phone with weaker signal to save battery, wireless range is much improved with this new model. The wireless range of this model is ~ 2 to 3 times of most other models) Known compatible speaker models: · All Bose speakers with 30 pin dock, sounddock original, I, II, 10, portable. · All speakers with 30 pin dock and auxillary 3.5mm input. If the 30 pin dock is not compatible, plug this bluetooth adapter on the 30 pin dock
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