EPOS

Sennheiser ADAPT Presence Grey UC. Product type: Headset. Connectivity technology: Wireless, Bluetooth. Recommended usage: Calls/Music. Headphone frequency: 150 - 15000 Hz. Noise-canceling. Wireless range: 984.3" (25 m). Weight: 0.459 oz (13 g). Product color: Gray

EPOS | SENNHEISER IMPACT D 10 HS. Product type: Headset. Connectivity technology: Wireless. Recommended usage: Office/Call center. Headphone frequency: 150 - 6800 Hz. Weight: 1.76 oz (50 g). Product color: Black, Silver

EPOS EXPAND 30. Device type: Universal, Product color: Black, Silver, Maximum operating distance: 984.3" (25 m). Frequency range: 100 - 20000 Hz. Microphone frequency: 150 - 7500 Hz. Connectivity technology: Wired & Wireless, Interface: USB/Bluetooth, Bluetooth profiles: A2DP, AVRCP, DI, HFP, HSP. Talk time: 18 h, Battery recharge time: 3.33 h