brand new and high quality Feature: . Water bottle design concept, excellent texture wrapping cloth. Cool LED lights, prominent buttons, simple operation. Bottle cap-like knob closure, plus a tether for easy carrying. Bluetooth-compatible 5.0 connection, support BT/AUX playback. Specification: Product type: Bluetooth-compatible Player Model: RB-M41 Battery capacity: 1800mAh Charging time: 2-3 Hours Playing time: 6 Hours Frequency response range: 20HZ-20KHZ Signal to noise ratio: 75dB Expansion storage: 32GB Music format: MP3 Working temperature: -5-40/ 23-104 Material: Plastic Size (app.): 65x38x255mm / 2.55x1.49x10.03inch Optional colors: Blue, Black, Green Quantity: 1 Pc Notes: Transition: 1 for cm = 10 mm = 0.39 inches Due to manual measurement, please allow an error of 0-1 for cm. Make sure you don'for t mind bidding. Due to the differences between different monitors, the picture may not reflect the actual color of the item. The package includes: 1 X Bluetooth-compatible Player 1 X USB Cable 1 X Manual