<span style="font-size:14px"><span style="font-family:Arial,Helvetica,sans-serif"><strong>Features:</strong> <strong>Bluetooth 4.1</strong> The advanced Bluetooth 4.1 technology has more stable signal and 10 meter transmission distance. <strong>Easy to operate </strong> One button to switch hands-free calling mode and privacy calling modes. It is easy to adjust the volume and control the power by the buttons. <strong>Easy to install</strong> The bottom clip makes it convenient to install the sun-visor speaker on car sun-visor. Compact body will not occupying much installation space. <strong>Clear speaker</strong> The sun-visor receiver with 2ohm 3w built-in speaker can provide you high clear calling experience. <strong>Scope of application </strong> The sun visor speaker is widely suitable for different kinds of car sun visor and intelligent phones. <strong>Usage:</strong> One press- hands-free calling mode Double press- privacy calling mode <strong>Specification:</strong> Type: sun-visor speaker Quantity: 1pc Material: plastic, metal Color: black/ white Bluetooth: 4.1 Chip: CSR chip Memory: 8 phones&rsquo; matching record Automatic connection: supporting Dual direction connection: supporting Battery: built-in 1000ma battery Working time: 17-20h Standby time: 60 days(1400h) Working temperature: 10-75 Celsius Frequency: 2.4ghz-2.48hz Working distance: 10m Interface: mini-USB Speaker power: 3w Speaker resistance: 2 ohm Input voltage: 5v Size: 10*7.5*1.8cm/ 3.93*2.95*0.71inch(L*W*H) Net weight: 175g/ 6.17oz <strong>Package:</strong> 1* sun-visor speaker</span></span>