BluePlayer listen to the stereo music phone ☆ with Bluetooth stereo audio transmission device will allow ordinary phones, MP3 players, iPod, PSP, audio, computers, etc. to listen to stereo music Product specifications Bluetooth specifications: V1.2 version of the second-class Frequency range: 2.4 GHz channel Support Bluetooth Headset, Handsfree, A2DP Profiles & AVRCP Connects 3.5 mm standard headphone sound reproducing apparatus MSI BLUE PLAYER support AVRCP arias and support functions 250 mAh lithium polymer rechargeable batteries, and 110 ~ 240Vac charger compatible Music players time: about 6 to 7 hours Talk Time: 7.5 hours Standby time: 200 hours Charging time: 3 hours Dimensions: 55 (L)? 24 (W)? 27 (H) mm Weight: 20.1 grams