Brand ESER Model H166 Quantity 1 Color Black Material Plastic housing Bluetooth Standard V2.1 USB Standard Mini USB interface Frequency 2480MHz Operation Range 10 m Suitable Device Ipad Iphone cellphone notebook and other digital devices with Bluetooth function Data Transmission Rate 3Mbps BQB Certification No Supports System Windows 2000 / XP / Vista / 7 Other Features Simple operation the 3.5mm audio cable can connect the speaker with the receiver; High-performance AMP chip can push earphone and high-power speaker applicable to all kinds of speaker; Strong Bluetooth IC great compatibility; Red and blue LED light design very beautiful and humane; Two LED lights flashes alternatively the blue light flashes slowly after connection the red LED light is on until it is fully charged during charging; Technical parameter standard Bluetooth 2.1 supports A2DP V1.2 5V DC supply; Battery: built-in 350mAh battery 5 to 7 hours battery life 70% volume; Charge time: 1.5 to 2 hours. Packing List 1 x Bluetooth receiver 1 x Audio cable (46.5cm) 1 x Charge cable (79.5cm)