Home Slickdeals Massdrop x HIFIMAN Bolt In-Ear Monitors $12.75 Slickdeals Massdrop x HIFIMAN Bolt In-Ear Monitors $12.75 By ARCOM - 21 August 2018 165 0 SHARE Facebook Twitter Go to the deal page: Massdrop x HIFIMAN Bolt In-Ear Monitors $12.75