Compatable with : For Sennheiser Urbanite XL. For Sennheiser HD 4.40 BTNC. For Sennheiser HD 4.50 BTNC. Battery Capacity : 3.7V 1000mAh 2.4Wh. 1 x 1000mAh Battery. The Tools is free, so i can't Promise tools will be suitable for your Device.
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