Black wireless sports stereo headphones bring you high quality sounds. Wireless connection up to 10 m. Enjoy your music in any situation. Compatible with all bluetooth-enabled devices.Unique design eliminates annoying wires that get tangled when you run, jog, bike or work, and ergonomic earphone design provides a snug fit;Hi-quality -fi stereo gives you clear stereo sound. Works great for soundtracks, audiobooks, and relaxing sounds, stay away from noise and wires, and enjoy the purest music! Perfect for exercising, jogging, working out, and more. Enjoy your music freely all day!Material: ABS+TPUBT version: 5.0 Call time: about 6hPlay time: about 5h (volume 80%)Standby time: about 300hMicro input: DC-5V/100mA± 50mAAbattery capacity: 120mAhCharging time: about 1.5hMIC sensitivity: -42dbFrequency range: 20Hz~20KHzSpeaker impedance: 32Ω±15%Speaker sensitivity: 84±3dBSNR: 85dBConnection distance: 10m -15mCompatibility: for Android/Apple devices with BT functionAccessory: Charging cable*1Features:1.Open-Ear design, protecting your hearing.2. Surrounding directional sound field, immersive sound.3.BT 5.0, intelligent audio/phone call switching.4.IPX5 waterproof, comfortable to wear.