PRODUCT GRADING (Grade A) - Excellent Condition > Minor if any signs of use and wear > Refurbished to the highest standards. (Grade B) - Good Condition > Very light scratches and light signs of use > Refurbished to the highest standards. (Grade C) - Fair Condition > Visible scratches and signs of use throughout > Refurbished to the highest standards. Retail Box WHAT IS IN THE BOX Tronsmart Bluetooth speaker, 15 Hours Playtime, Voice Assistant, Black PRODUCT DESCRIPTION 40W dual-driver system is capable to reach as much as 100db. Tronsmart FORCE Bluetooth Speaker is loud enough to fill the entire room. With 6600mAh battery.  Equalizer Sound Effect Tronsmart FORCE 3 equalizer audio modes (3D stereo, Extra bass, and Standard) will make any music genre sound delightful. Bluetooth Speaker 5.0 Most advanced bluetooth 5.0 technology easily connects to all of your bluetooth-enabled devices up to 100ft range. Tronsmart also support Micro SD card, 3.5mm AUX-in port gives you more audio options. PRODUCT INFORMATION Model - Tronsmart Force Output (watt) - 2 x 20W Max Bluetooth Version - 5.0 Power Supply - DC 5V/3A Battery Capacity - 3300mAhX2 Loudspeaker size - 53mm Distortion - ≤1.0% Frequency - 80Hz-18KHz Dimension - 204x63x80mm Net Weight - 780±5g / 27.51±0.2 oz Transmission Distance - 30m/100ft (open area) Charging Time - About 3 hours