Oneder D7 Bluetooth Speaker Outdoor Karaoke Wireless Speakers With Two Mic 1. Bluetooth Version: V5.3 2. Transmission: 15m 3. Box material: leather 4. Box structure: low-frequency reflective type 5. 0utput Power: 40W 6. Speaker Driver: 2 inch x 2 + 4 inch x 1 7. Frequency: 50Hz-16kHz 8. Battery: 7.4V5000mAh 9. Charging Time: 2-5h 10. Play Time: 5-8h 11. Use Bluetooth5.3 module for faster transmission, lower power consumption, stronger anti-interference ability, simple connection, free play 12. Exquisite model, light luxury retro, home matching, more refreshing and lower design aesthetics, integrated into a sound life 13. Double metal diaphragm explosive auditory feast 14. Time carving classic continues forever, specially customize cloth net, retro knob button 15. Long endurance large battery, 5000mAh high-capacity polymer lithium battery with dual design slows down the state of the playback time by up to 8 hours 16. Stereo phonics the sound is wider and further, HiFi sound quality, super strength 48mm full frequency unit structure 17. Leather casing, compared to the thinness of the plastic and the coldness of the metal, more warm tone, warm world is beautiful 18. Classical luxury the gift of life, when the melody starts, happiness starts instantly 19. Package included: A. 1 x Bluetooth Speaker B. 1 x USB Cable C. 1 x Audio Cable D. 1 x User Manual