Yealink

Yealink RT30. Frequency range (EU): 1880 - 1900 MHz, Frequency range (US): 1920 - 1930 MHz, RF power: 10 mW. AC input voltage: 100 - 240 V, DC output voltage: 5 V, DC output current: 0.6 A. Width: 5.12" (130 mm), Depth: 0.988" (25.1 mm), Height: 3.94" (100 mm)

Yealink UH34 Mono Teams. Product type: Headset. Connectivity technology: Wired. Recommended usage: Office/Call center. Headphone frequency: 20 - 20000 Hz. Cable length: 47.2" (1.2 m). Weight: 2.91 oz (82.5 g). Product color: Black

Yealink YHS36. Product type: Headset. Connectivity technology: Wired. Recommended usage: Office/Call center. Headphone frequency: 20 - 20000 Hz. Cable length: 35.4" (0.9 m). Weight: 6 oz (170 g). Product color: Black, Silver