Boss Waza Air Bass; Over-Ear Headphone Bass Sound System with 2,4 GHz Wireless Connectivity, premium amp and effect tones, Bluetooth audio streaming, and sound editing via your smartphone; Advanced BOSS spatial technology and integrated gyro sensor deliver natural ""amp-in-room"" tone with 3D ambience and dynamic sound localization; Five unique amp types and over 30 customizable bass-tuned effects; Integrated BOSS wireless technology provides exceptional sound quality with ultra-low latency ; Easy-to-use controls for guitar volume and Bluetooth audio playback, plus instant access to six user-configurable tone settings; Large, custom-designed 50 mm drivers deliver premium audio quality with rich, full sound; Conforming earpads ensure optimum driver performance for uncompromised guitar tone ; Wide headband provides comfort for long playing sessions; Durable construction with chrome-plated metal parts; Versatile two-way design folds down for compact storage or flat transport in a guitar bag pocket ; Built-in rechargeable batteries with auto standby/wake function to conserve battery life; Up to five hours of play time with the headphones and up to 12 hours with the included WL-T Transmitter; Wirelessly edit, organize, and download tones with the BOSS Tone Studio app for iOS and Android mobile devices; Controls: Power Switch, Volume Knob, Ch Up/Down Buttons, Bluetooth Multi-Function Button; Indicators: Charge, Power/Battery, Bluetooth, Guitar Wireless; Connectors: Transmitter in (1/4"" TRS-Jack), Charge (DC IN 5 V) port (USB Micro-B); Rechargeable lithium-ion battery; Current Draw: (While charging) 470 mA; Weight (Headphones): 320 g; included: WL-T Transmitter, Micro USB-Cable; (Spare transmitter available under article number: #486908)