Bluedio T3 (Turbine 3rd) Extra Bass Wireless Bluetooth 4.1 Stereo Headphones<br /><br />T3， the latest Bluetooth headphones of Turbine Series， is designed and created by our professional Bluedio team. Compared with T2， it has a number of major upgrade: Zn alloy frame and body ensures it’s sturdy enough to be unbreakable and durable; 57mm titanizing diaphragm leads to a better resolution， quicker response and dynamic and swift sound; the totally new 3D sound， adopted by Turbine Series for the first time， will give you a more wonderful sound experience.<br /><br />Note:<br />1. There is a new added Play/Pause button on T3. <br />2. Operations such as skipping forward/back and Volume+/- on T3 are contrary to previous headphones.<br />(Specific information please refer to the user manual.)<br />Specifications:                <br />Bluetooth version: 4.1 +EDR<br />Bluetooth transmission frequency: 2.4GHz to 2.48GHz<br />Bluetooth operating range: up to 33 feet (free space)<br />Profiles: A2DP， AVRCP， HSP， HFP<br />Audio resolution: up to 24bit@48KHZ<br />Drivers: Φ57mm<br />Impedance: 16Ω<br />SPL: 116dB<br />Frequency response: 15Hz-25，000Hz<br />THD: <0.1%<br />Standby time: up to 1100 hours<br />Bluetooth music/talk time: about 20 hours<br />Charging time: 2 hours for full charge<br />Operating temperature range: -10 ℃ to 50℃ only<br />Headphones dimensions: 159*126*78mm<br />Package dimensions: 251*170*95mm<br />Headphones weight: 388g<br />Package weight: 955g<br /><br />In the box:<br />Bluedio T3 Bluetooth headphones<br />3.5mm audio cable<br />USB charging cable<br />Drawstring carry bag<br />User manual