All4Cellular offers the T-Mobile MyTouch Power Play FM Transmitter & Car Charger
, model no. UAM1030100006-BlueMall, for $4.95. Coupon code "A4C5OFF" cuts it to $4.70
. With free shipping
, that's $13 under the lowest total price we could find for a similar transmitter and car charger elsewhere. It features an FM transmitter, hands-free calling, USB charging port, and more. Deal ends February 17.