【Immersive 3D Surround Sound | The Ultimate Party Speaker】This karaoke machine features revolutionary dual-driver separation technology. Our 5.25" subwoofer and 2" tweeter operate in isolated acoustic chambers, delivering crystal-clear vocals through AI tuning and distortion-free deep bass (only 0.05% THD at 380W). Perfect for family gatherings and parties – studio-quality sound separates every vocal/instrument layer, ensuring singers always shine center stage. 【2 High-Quality Wireless Mics | 2 Extra Mic Inputs】Our JYX 69BTkaraoke machine for adults includes 2 high-quality wireless microphones and features 6.35mm & 3.5mm mic inputs (for wired microphones and wireless microphones with receiver), allowing additional microphones to be connected so more people can join the fun. Independent ECHO control lets you add immersive, professional-grade reverb to each microphone, enhancing your voice and creating your unique vocal style. Note: 2 AA batteries per microphone required (batteries not includeed). 【Multiple Connections | Portable Design】It comes with 2 microphones support Bluetooth, AUX (Includes 3.5mm AUX cable), SD Card, USB connect. Our karaoke machine with 2 microphones (12.6 inch*9.1 inch*5.0 inch) is 100% portable with the strap. Designed to go wherever you do, it features metal-reinforced corners and a leather-textured surface that offers superior scratch and wear resistance compared to typical ABS materials. (Please note that the speaker does not come with preloaded audio tracks.) 【24-Hour Marathon Playtime | Rhythm-Sync LED Lights 】This portable karaoke machine features a massive 5000mAh battery that powers non-stop singing for 24 hours. The intelligent dual-core DSP chip and dynamic circuit management reduce power consumption by 30%, while Bluetooth 5.3 maintains ultra-stable wireless connections. Perfect for weekend family gatherings and outdoor camping parties - enjoy unlimited karaoke anywhere without needing power outlets. The portable karaoke machine features rhythm-synced LED lights that pulse and change with the music, creating a dazzling, colorful light show. Perfect for home parties, family gatherings outdoor events. 【Instant TV Karaoke System Setup】This karaoke machine for adults is engineered for seamless indoor singing-connect it to your TV via Bluetooth or AUX cable, grab the wireless mics, and start your TV karaoke system instantly. Built specifically as a hassle-free home karaoke system with zero tech expertise needed. NOTE: Please confirm that your TV has a 3.5mm AUX port or supports Bluetooth audio output. 【Wireless Stereo Pairing (TWS Mode-Two 69BT Speakers needed) | 360°Immersive Audio】Link two 69BT karaoke speakers via Bluetooth 5.3 for true wireless stereo and immersive 3D surround sound. Perfect for living room concerts, outdoor movie nights, or dynamic karaoke battles. To use TWS: short-press the TWS button on one speaker to connect both units for synchronized dual-speaker audio; long-press to disconnect. Instant sync ensures zero lag-double the speakers, double the fun. 【1-Year Peace of Mind & Pro Support】We offer 12 months warranty and friendly customer service. If you have any problems with your karaoke machine, please feel free to let us know via Amazon message, we will be happy to help you. NOTE: This item does not come with a lyrics display. Charger included: Yes Fast charging supported: No Charging interface: USB Type-C