2pcs Karaoke Microphone Set. Unique Style, Ideal For Valentine's Day, Birthday Gifts; Ghostly Sound Quality, Haunting Vocals, Fairy-Like Spirits, Cool LED Lights, Includes Bluetooth, TF Card, AUX, Headphone Monitoring Modes, Surprise For Family Gatherings, Precious Holiday Gift, Essential For Outdoor Activities. Speaker Battery DC3.7V-800mAh, Microphone Battery DC3.7V-300mAh