ER2380B Features High performance car Bluetooth music adapter for wireless streaming Allows you to enjoy hands-free calling while driving Equipped with a USB port to conveniently charge your digital device in the car Enjoy wireless music anytime and anywhere Compact size & space saving design General Specs Brand & Model 6660# Bluetooth Version V3.0  Bluetooth Profile A2DP， AVRCP Output 5V 2.1A SNR >93dB THD <0.05% Frequency Response 20Hz-20KHz±0.3dB Output Level 1Vrms Port & Interface 1 x USB2.0， 1 x 3.5 mm audio interface Compatibilities All Bluetooth enabled devices Applications Car stereo with AUX in Package Details Weight: 85.60 g Size: 16*12*3.8 cm