Overview: This is a slender USB-powered speaker; its and lossless bass sound effect and stereo surrounding sound loudspeakers bring you wonderful music. With a 3.5mm audio plug, it's perfect for desktop, laptop, TV, smartphone, tablet PC, MP3, MP4, and more. Features: BT5.0 technology has lower power consumption and more stable signal transmission. Multiple playback modes of BT / USB disk / TF card / AUX/ are supported. and HiFi bass sound effects and stereo surrounding sound loudspeakers bring you wonderful music. 2*3W loudspeaker, using a loudspeaker and passive diaphragm, strong bass performance, giving you better sound quality enjoyment. With a 3.5mm audio plug, it's perfect for desktop, laptop, TV, smartphone, tablet PC, MP3, MP4, and more. The USB-powered speaker is energy-saving and environment-friendly, , and reliable, with a 1500mAh rechargeable battery. Specification: Model: JY-68 Material: ABS BT Version: 5.0 Power: 3W*2 Power Supply: DC 5V 1A Battery: 3.7V 1500mAh Input Interface: USB/AUX/TF/BT//PC SNR: ≥80dB Frequency Response : 20Hz-18000KHz USB/TF: Up to 32GB Color: Black, Green (Optional) Item Size: approx.17.7*10.7*7.2cm / 6.97*4.21*2.83in Package Size: approx. 18.5*12*8cm / 7.28*4.72*3.15in Package Weight: approx. 608g / 21.45oz Package List: 1 * Speaker 1 * USB Cable 1 * 3.5mm Audio Cable 1 * User Manual

【Recommended Setting】We recommended petg filament extrusion/nozzle temperature 220-240℃, hot bed temperature 70-80℃, support printing speed: 30-60mm/s. PETG 3D printer filament to be strict tolerances, diameter 1.75mm, dimensional accuracy ±0.02 mm. 【Mechanical Properties】Tensile strength (X-Y): 45.99(MPa)±10%, Elongation at break (X-Y): 10.71(%)±10%, Bending strength: 59(MPa)±10%, Bending modulus: 1080(MPa)±10%, Charpy impact strength: 326 (J/m)±10%，Heat Deflection Temperature: 64℃（0.45MPa), Melt flow rate: 9.72g/10min. 【Clog-free & Bubble-Free】No warping, no jamming and no blobs issues to guarantee a smooth and stable printing experience. Please make sure to hold the tip of the filament as it may create nodes. Holes on the side of the spool can be used to prevent this issue. 【Wide Compatibility】PETG 1.75mm 3D printer filament has great bed adhesion, very consistent color and dimensional accuracy with a higher toughness than regular PLA, fit most FDM 3D printers on the market, such as neptune 2, neptune 3, Ender 3 and more. 【Reusable Vacuum-Sealed Packaging】PETG 3D printer filament 1.75 complete drying for 24 hours before packaging and vacuumed sealed with desiccant to keep it dry. Prevent dust and please store into re-sealable bag with zip locked timely after using to maintain excellent.