Dual Dynamic Driver earphone technology for well-balanced and accurate sound reproduction Pro-X7 earphones has in-line remote, mic for hands-free calling and volume control Noise isolating in ear headphone for improved audio quality Noise cancelling headphone microphone for clear conversations Gold-plated 3.5mm headphone jack for stable connection Earphones compatible with iPhone, Samsung Galaxy, Xiaomi Redmi, Huawei, Sony Xperia, Oppo, Oneplus, Lg, Google Pixel, laptop, Mp3 player and other devices with 3.5mm jack ( adapter may be required for some devices) Betron earphones feature 3.5 mm jack, tangle-free 1.2m long wired headphone cable, 20-20000hz frequency range, low latency connection Was £24.99 Now