Megaphones

JPL Convey. Device type: Mobile phone/PC, Product color: Blue, Silver, Material: Glass, Metal. Sensitivity: 40 dB, Impedance: 75 Ω. Microphone direction type: Omnidirectional. Light color: Blue, Red. Connectivity technology: Wired, Interface: USB 2.0, Headphone connectivity: 3.5 mm

JPL Convey. Device type: Mobile phone/PC, Product color: Blue, Silver, Material: Glass, Metal. Sensitivity: 40 dB, Impedance: 75 Ω. Microphone direction type: Omnidirectional. Light color: Blue, Red. Connectivity technology: Wired, Interface: USB 2.0, Headphone connectivity: 3.5 mm

DELL SP3022. Device type: Universal, Signal-to-Noise Ratio (SNR): 80 dB. Frequency range: 90 - 20000 Hz. Connectivity technology: Wired, USB connector type: USB Type-C. Width: 2.8" (71 mm), Depth: 8.9" (226 mm), Height: 2.31" (58.7 mm)

Lenovo 4XD1C82055. Device type: PC, Product color: Black, Cable length: 31.1" (0.79 m). Sensitivity: 85 dB, Output power: 3 W, Frequency range: 140 - 20000 Hz. Microphone frequency: 100 - 10000 Hz, Microphone direction type: Omnidirectional, Microphone sensitivity: 64 dB. Connectivity technology: Wired. Width: 3.54" (90 mm), Depth: 3.54" (90 mm), Height: 1.93" (49 mm)

EPOS EXPAND 20. Device type: Universal, Product color: Black, Silver, Optimized for: UC, Skype for Business. Frequency range: 150 - 15000 Hz. Microphone frequency: 150 - 6800 Hz, Microphone direction type: Omnidirectional. Connectivity technology: Wired, USB connector type: USB Type-A, USB connector gender: Male. Talk time: 20 h, Standby time: 30 h, Battery recharge time: 2.5 h

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

Yealink CP700. Device type: Universal, Product color: Black, Silver, Maximum operating distance: 1181.1" (30 m). Frequency range: 100 - 8 Hz. Connectivity technology: Wired & Wireless, Interface: USB/Bluetooth. Battery capacity: 1420 mAh, Current: 0.5 A. Weight: 7.76 oz (220 g)

Jabra Speak 510 MS. Device type: Universal, Product color: Black, Maximum operating distance: 3937" (100 m). Microphone direction type: Omnidirectional. Connectivity technology: Wired & Wireless, Interface: USB/Bluetooth, Bluetooth profiles: HSP. Power source type: Battery, Talk time: 15 h, Battery life (max): 15 h. Width: 4.72" (120 mm), Depth: 4.72" (120 mm), Height: 1.3" (33 mm)

Yealink Speakerphone CP 900. Device type: Universal, Product color: Black, Silver, Suitable location: Home office. Connectivity technology: Wired & Wireless, Interface: USB/Bluetooth. Battery capacity: 2450 mAh, Talk time: 12 h, Standby time: 450 h. Weight: 11.3 oz (320 g)

Yealink Speakerphone CP 900. Device type: Universal, Product color: Black, Silver, Suitable location: Home office. Connectivity technology: Wired & Wireless, Interface: USB/Bluetooth. Battery capacity: 2450 mAh, Talk time: 12 h, Standby time: 450 h. Weight: 11.3 oz (320 g)

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, Microphone direction type: Omnidirectional. Connectivity technology: Wired & Wireless, Interface: USB/Bluetooth, Bluetooth profiles: A2DP, AVRCP, DI, HFP, HSP. Power source type: Battery, USB, Talk time: 18 h, Battery recharge time: 3.33 h

EPOS EXPAND 30T. 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

Viewsonic VB-AUD-201. Device type: Universal, Product color: Black, Signal-to-Noise Ratio (SNR): 65 dB. Frequency range: 100 - 8000 Hz. Microphone frequency: 150 - 8000 Hz, Microphone direction type: Omnidirectional, Microphone sensitivity: 84 dB. Connectivity technology: Wired & Wireless, Interface: USB/Bluetooth, Bluetooth profiles: A2DP, AVRCP, HFP. Power consumption (typical): 10 W, Operating voltage: 5 V, Current: 2 A

DELL MH3021P. Device type: Universal, Product color: Silver, Cable length: 18.3" (0.465 m). Frequency range: 200 - 20000 Hz. Microphone frequency: 100 - 10000 Hz. Connectivity technology: Wired, USB connector type: USB Type-C. Width: 4.69" (119 mm), Depth: 4.69" (119 mm), Height: 1.26" (32 mm)

Logitech Mobile Speakerphone P710e. Device type: Mobile phone, Product color: Black. Sensitivity: 85 dB, Frequency range: 140 - 16000 Hz. Microphone frequency: 50 - 8000 Hz. Connectivity technology: Wireless, Interface: USB/Bluetooth, Headphone connectivity: 3.5 mm. Power source type: AC, Talk time: 15 h

Yealink Speakerphone CP 900. Device type: Universal, Product color: Black, Silver, Suitable location: Home office. Connectivity technology: Wired & Wireless, Interface: USB/Bluetooth. Battery capacity: 2450 mAh, Talk time: 12 h, Standby time: 450 h. Weight: 11.3 oz (320 g)

EPOS EXPAND 40. Device type: Universal, Product color: Black, Gray, Maximum operating distance: 984.3" (25 m). Sensitivity: -89 dB, Magnet type: Neodymium, Frequency range: 100 - 20000 Hz. Microphone frequency: 150 - 7500 Hz. Connectivity technology: Wired & Wireless, Interface: USB/Bluetooth, Bluetooth profiles: A2DP, AVRCP, DI, HFP, HSP. Power source type: Battery, USB, Battery technology: Lithium Polymer (LiPo), Battery capacity: 1110 mAh

EPOS EXPAND 40+. Device type: Universal, Product color: Black, Gray, Maximum operating distance: 984.3" (25 m). Sensitivity: -89 dB, Magnet type: Neodymium, Frequency range: 100 - 20000 Hz. Microphone frequency: 150 - 7500 Hz. Connectivity technology: Wired & Wireless, Interface: USB/Bluetooth, Bluetooth profiles: A2DP, AVRCP, DI, HFP, HSP. Power source type: USB, Battery, Battery technology: Lithium Polymer (LiPo), Battery capacity: 1110 mAh