POLY BackBeat PRO, Wired & Wireless, 20 - 20000 Hz, Calls/Music, 340 g, Headphones, Black, Purple
POLY BackBeat PRO. Product type: Headphones. Connectivity technology: Wired & Wireless, Bluetooth. Recommended usage: Calls/Music. Headphone frequency: 20 - 20000 Hz. Wireless range: 100 m. Weight: 340 g. Product color: Black, Purple