Singing Machine SMM478 Duet Karaoke Microphones with Portable Bluetooth Speaker

2-Pack Singing Machine Duet Portable Bluetooth Speaker with Microphone Portable 2 in 1 Bluetooth Microphones with Speakers pair together 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! Microphone volume and echo controls. Pair 2 units simultaneously for duets Li-ion rechargeable battery for over 4 hours fun Built-in Speaker. Line-in jack to connect your favorite audio device 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 together 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! 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 favorite audio device Pair 2 units simultaneously for duets Built-in Speaker