You can always listen to your favorite music and have fun with fantastic colored lights! version V2.1+EDR, CLASS II Operating distance 10m DC 5V 1000mA     Maximum power output 1.5＂ Maximum power output 3W*2 Resistance 4Ω Signal-to-noise ratio ≥70dB Frequency response 100Hz - 18kHz The weight 363g The size 219.5*115*27mm Microphone yes Supported functions A2DP, AVRCP The music playback 7 hours The weight 484g The sixe 245*180*35mm Barcodes 6291105915441