Gradient Bluetooth Headset Headset Wireless Game Gift Headset Foldable Headset Gift Features: V5.1 Bluetooth chip: The audio and picture synchronization is more. The upgraded Bluetooth 5.1 chip has signals, effectively improving the transmission stability, and the transmission speed is faster and more stable. Powerful shock, effect, 40MM large unit, more texture and music, bring surging. Intelligent noise reduction, high-definition call, passive physical noise reduction, and high-sensitivity microphone bring better call experience. Folding and storage: It is convenient to travel with complete sound and color. The damping shaft design is adopted, and the headset can be folded, which greatly saves the carrying space and is convenient to carry out. Long lasting endurance: Say goodbye to the anxiety of power consumption. The music lasts for about 20 hours, and you can listen to it all day. Product Description: Parameters: Bluetooth version: V5.1 Standby time: 300 hours Charging time: 2 hours Product material: ABS Product size: 18.8 * 18.5 * 7.8cm Communication distance: 10M Frequency range: 20Hz - 20KHz Rated input: DC5V-200mA Charging interface: Note: (Do not use a charging exceeding 1.5A for charging) contain: 1x Bluetooth headset