This portable speaker, with its natural finish, classic-inspired design and anti-slip silicone feet, is ideal for those who value both design and functionality.Material: Recycled ABS (100% rABS), Bamboo | Wireless transmission: BT v5. 0 | Capacity: 500 mAh | Approximate battery life: 4 h | Approximate charging time: 2h 30m | Input: microUSB (1'8W) , microSD | Frequency response: 60 Hz - 16 kHz | Signal-to-noise ratio: > 80 dB | Sensitivity: 58 ±3 dB | Harmonic distortion: ≤ 0'45% | Impedance: 4Ω | Speaker diameter: Ø 40 mm | Sound power: 3 W | Frequency response: 20 Hz - 16kHz | Sensitivity: -38 ±3 dBV/Pa | Features: Hands-free, FM radio | Includes: USB-A / microUSB cable | Delivery: kraft paper gift box 70 x 70 x 37 mm