Oneder D3 Retro Leather Casing 30W Dual Units Wireless Bluetooth Speaker 1. Use Bluetooth 5.0 module for faster transmission, lower power consumption, stronger anti-interference ability, simple connection, free play 2. Exquisite model, light luxury retro, home matching, more refreshing and lower design aesthetics, integrated into a sound life 3. Double metal diaphragm explosive auditory feast 4. Time carving classic continue forever, specially customize cloth net, retro knob button 5. Long ecdureance large battery, 4000mAh high-capacity polymer lithium battery with dual design slow down the state of the playback time up to 8 hours 6. Stereo phonics the sound is wider and further, HiFi sound quality, super strength 48mm full frequency unit structure 7. Leather casing, compared to the thinness of the plastic and the coldness of the metal, more warm tone, warm world is beautiful 8. Classical luxury the gift of life, when the melody starts, happiness starts instantly. Specifications: Bluetooth Version: V5.0 Transmission: 10m Output: 30W Frequency: 50Hz-16KHz Driver: 2 inch x 2 S.N.R: >=85dB Battery capacity: 7.4V 4000mAh Charging time: 3-4 hours Working time: 6-10 hours Product size: 170x80x80mm Package included: Bluetooth Speaker x 1 USB Cable x 1 Audio Cable x 1 User Manual x 1