JBL Free 2 Bluetooth headsets for music chi refurbished music headphones presence of merely aesthetic defects evident on the chassis and on the screen, such as scratches, halos and/or luminance points, the hardware is however tested, functional and guaranteed. (see Details Product Condition) Purchase invoice: It should be requested at the same time as the order and will be sent by email. In the absence of the billing data, the tax receipt that will not be possible to cancel will be issued. Driver sensitivity to 1 kHz/1mw (DB): 100 Dynamic frequency response range (Hz): 20 Hz - 20 KHz Bluetooth profiles: A2DP 1.3, AVRCP 1.6, HFP 1.7 Modulation transmitted via bluetooth: gfsk, π/-4dqpsk, 8dpsk Power of the Bluetooth transmitter: 0 - 12DBM Battery life of the charging case (maximum hours): 18.
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