This earphone is ergonomic and lightweight, which is comfortable to wear. Long standby time and low power consumption of this earphone is supported by its large-capacity battery. It is enjoyable to have quick and stable transmission as well as mega bass and surround stereo sound effect due to the Bluetooth-compatible5.1 chip and intelligent noise reduction technology of this earphone. It is constructed of ABS material. The magnetic design makes it easy and convenient to store away. The length of this product is 17cm, width is 13cm and height is 1.5cm. This wireless earphone is suitable for running, driving, listening to music, doing sports, calling and so on. It is compatible for iPhones, for Android phones and other devices with Bluetooth-compatible function. Item Name: Neck Band Earphone Material: ABS Bluetooth-compatible: 5.1 Effective Distance: 10m Channel: Stereo Charging Voltage: 5V Working Time: about 100H Charging Time: 3H Battery Capacity: 800mAh(Included) Waterproof: IPX5 Wearing Method: Neck Hanging Play Type: Bluetooth-compatible Play/Card Play Language Prompts: Chinese and English Prompts (Switching Method: press the power button 2 times after seeing the red and blue lights when the machine is turned on) Features: HiFi, LED Digital Display, Magnetic Storage Size Details: 17cm x 13cm x 1.5cm/6.69" x 5.12" x 0.59"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Neck Band Earphone 2 Pair of Eartips 1 x Charging Cable