Overview: this portable mini-designed bluetooth speakerphone is specially designed to give you convenience and freedom ofmunication, which can be used as hands free car kit when you are driving or as conference speakerphone on desk-top when you are at home, office, etc. With advanced built-in microphone which adopts dsp solution for echo cancellation and noise suppression, this speakerphone creates an outstanding full duplex sound quality for you. This product is designed with built-in rechargeable battery that can be charged random by the equipped charger. Features: requiring no installation, just clip it on your sun visor via magnetism. Designed with 20 hours of talking time and 40 days of stand-by time, you can count on it for important calls. Comes with fully automatic pairing and high quality to fit perfectly into your car. Will enjoy echo and noise-free conversations due to a powerful speaker and dsp technology. Built-in 2w speaker compatibility: - all iphones, ipads and ipod touch - android smartphones - sony, lg, htc, all droids, samsung - blackberry smartphones - bluetooth: v3.0+edr specifications: bluetooth edition: v3.0+edr working frequency: ism 2.4 ~ 2.48ghz connection range: 10m speaker: 2w battery: lithium 3.7v, 650mah talk time: up to 20h standby time: up to 1000h charging time: 2-3h package includes: 1x hands-free speakerphone 1x car charger 1x usb cable 1x user manual