Shackle SK17 V4.1 bluetooth mini lightweight wireless stereo sports headphone make the genuine SK17 from Shackle Sounds. The technical specification are bluetooth 4.1+EDR and the bluetooth chips CSR8645, supports APT-x feature (hifi stereo). The RF range is 10m and noise reduction CVC6.0. The stand-by time is about 175 h. The calculating conversation time is about 6 h. The charging time is about 2 h. Weight 0.58 oz.
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