Wireless version: 3.0 + EDR Operation distance: 10m Range of Frequency: 2.4 to 2.48 35GHz ISM band Feature Provides an acoustically - tight seal for superior sound isolation, deep bass sound and tight bass response. Comfortable head cushion. Ideal fitting for various head size with long metal headband. Direct sound delivering ear pad with soft cushion. Swivels for flat and easy portability. Approximately 30 hours of playtime 4 hours of charging. One-touch connection with near field communication. SBC /AAC / APTX compatible.H13 What's in the box 1 x Headphone 1 x Audio Cable 1 x Micro USB Cable