Description:E3 Bluetooth box let you have fun in music world .It deliveries analog audio signal or send digital TV audio signal via Bluetooth connect with Bluetooth speaker、 Bluetooth headphone . It can pair with two Bluetooth device at the same time . Features:Music/Voice switching、 freely and relaxed.Auto paring、 don't need manual operation.Having compact and human-friendly design、 beautiful outlook、 it is very convenient to carry.It can transmit the audio/voice signal from very long distance.Super Clear and fluent speech effect.The inner Li-battery can bear long working time and has low power consumption.Support Bluetooth receiving devices such Bluetooth speakers、 headset、 receiver etc.Specification:Bluetooth : V4.0 SystemDistance : 20mStereo Music signal  : supportPCM Digital signal : supportAVRCP : supportStereo music : supportWorking time : 7-10hoursCharging time : about 2 hoursCompatible products: Syllable G05/G15/G01 Bluetooth headphones; Beyerdynamic /Beyerdynamic /AKG/ Grado /Sony Bluetooth headphones、 etc.Package:1¡Ámulti-functional Bluetooth Box Transmitter1¡Á3.5mm audio able1¡ÁUSB cable