boAt Rockerz 450 and Rockerz 640 wireless headphones Recently, boAt lifestyle has launched a range of affordable wireless headphones dubbed as Rockerz 450 & Rockerz 640 with mic. Designed for on-the-go purpose, the two headphone models retail at Rs. 1,799 and Rs. 2,999 with a 1-year warranty on Amazon.in. boAt Rockerz…