Singing Machine Duets Party Mics, Set of Portable Bluetooth Speakers with Microphones We know you love singing and sharing those “singable” moments; why not sing together? These truly portable 2 in 1 Bluetooth Microphones with Speakers pair so you and a friend can sing the night away! Lights sync as you sing, and the Echo controls give your voice a fun effect! Bring the party with you; you set the scene, we bring the fun! Product Features Pair 2 units simultaneously for duets Portable Bluetooth speaker with Microphone Lighting effects sync with your singing Microphone volume and Echo controls Li-ion rechargeable battery for over 4 hours fun Line in jack to connect your audio device (Devices sold separately) Product dimensions 3.2” W x 3.2” L x 10.00” H Product weight 1.13 lb Included in the box Model SMM478 – Set of two Micro USB charging cable