This wireless earphone is cheifly designed for long-time and of playing. The awesome stereo earphones not only equiped with the and stablest 5.1 chip, but also built-in the premium noise canceling microphones which allow you a music pleasure. What’s more, the earphones come with large capacity of battery providing 600 minutes standby time, absolutely the for gym sports, running, jogging etc. Features - Color: Red. - Material: TPY - Size: 86 x 1cm/ 33.86 x 0.79 x 0.39 inch. - Frequency Range: 16 Hz-25 kHz. - Sensitivity: 92dB. - Impedance value: 16Ω. - Earphone weight: 9.2g. - Drive unit：Graphene 10mm speakers. - Cruising ability：10 hours continuous. - Battery capacity：100mAh. - Unit speaker：4D. - Magnet design: Attach the two part of earphone together as a necklace when not using. It’s a convenient way to carry them. - Secure fit, comfortable, lightweight for wearing: anti-fall off . Equip with a silicone Ear hanging not only can fit to your ears and stay in your ears comfortable and perfectly, but also free your ears from fatigue and . No pain for long time using. Suitable for gym, biking and running. - Lightweight and waterproof: .2g for wearing, you even can’t feel its existence, running without any pressure. Ergonomic design for good fit for ears, can reduce auscultation effect effectively. - High waterproof for water and sweat, you can running without any pressure. - Built-in large capacity battery for up to 16 hours working time and 600 minutes standby time. Package list: 1 x wireless earphone