Portable speaker with a circular shape and a lanyard for easy portability. The exterior features an LED for a more appealing and modern visual effect.Material: Recycled ABS (100% rABS)Wireless transmission: BT v5'0Capacity: 400 mAhApproximate autonomy: 4 hApproximate charging time: 2hInput: USB-C (1W) , 3. 5 mmFrequency response: 80 Hz - 18kHzSignal-to-noise ratio: > 95 dBSensitivity: 58 ±3 dBHarmonic distortion: ≤ 0'5%Impedance: 4ΩSpeaker diameter: Ø 52 mmSound power: 3 WFrequency response: 20 Hz - 16kHzSensitivity: -38 ±3 dBV/PaFeatures: Hands-freeIncludes: USB-A / USB-C cableDelivery: kraft paper gift boxDimensions: ø55 x 63 mm | Box: 62 x 62 x 75 mm