This Klein Tools Bluetooth® speaker is a portable, mid-sized speaker designed to provide high-quality sound, making it easier to enjoy listening to music or favorite podcasts. This Jobsite Speaker also duals as a power bank, charging common mobile devices like cell phones or earbuds, and other smaller USB jobsite accessories such as headlamps or fans. Versatile mounting options include embedded magnets for strong magnetic mounting and an integrated hook for hanging on nails or screws. Broadcast Mode connects up to four additional Klein Tools Cat. No. AEPJS3 speakers, ensuring coverage across the entire jobsite.