Jabra Speak 510+ MS, Universal, Black, Cisco, Avaya, Siemens, Omnidirectional, USB/Bluetooth, Wired & Wireless Jabra Speak 510+ MS. Device type: Universal, Product colour: Black, Certification: Cisco, Avaya, Siemens. Microphone direction type: Omnidirectional. Interface: USB/Bluetooth, Connectivity technology: Wired & Wireless, Headphone connectivity: 3.5 mm. Talk time: 15 h, Battery recharge time: 2 h. Weight: 195 g