Portable Wireless Hifi Stereo bluetooth Sports Headphone Headset Mic SD AUX

Features: -Fold-able design make it portable; -Stereo Hi-fi sound; -Wide Compatibility; -3.5mm AUX input, SD card extended; -Hands-free phone call connection; Note: -The color of the item may vary slightly due to photography and different PC monitor, and the size might be slightly errored due to manual measurement. Your kindly understanding would be appreciated. Specifications: Name: bluetooth Headphone Material: Plastic Color: Black / Pink / Blue / Green / Orange Size: Approx.17.5x8.2x11.5cm/6.9"x3.2"x4.5" (Folded) Power supply: Built-in 400mAh Li-battery bluetooth version: bluetooth 4.0 bluetooth control range: 10m/393.7" Charging voltage: DC 5V Charging time: 2-2.5h (4h for the first-time charging before first usage) Playing time: up to10h (at average colume) RF frequency range: 2.402-2.480GHz, 2.4G ISM band Frequency response: 20Hz-20KHz SNR: 70dB THD(Total Harmonic Distortion): 0.1% Package includes: 1 x Headphone 1 x Micro USB cable 1 x Manual