X90 Bluetooth 4.1 Dual Dynamic Driver In Ear Sport Wireless Earphone With Mic

FREE SHIPPING WORLDWIDEShips from our global fulfillment warehouse, estimated 2-4 weeks delivery with tracking and insurance Double dynamic: Four speakers double dynamic Bluetooth headphone Language switch: Before connecting your Bluetooth, press the button three times to change language between Chinese and English Diamond cutting shape: Noble and grace Sweat-proof: Enjoy full joys while having sports V4.1 Bluetooth: Equipped with the advanced Bluetooth 4.1 technology, compatible with all Bluetooth-enabled devices Specifications: Dimensions: 9.2mm and 7mm Bluetooth version: V4.1 Frequency: 15Hz - 24KHz Sensitivity: 94dB Impedance: 16ohms Cable length: 1.2m Max.power input: 10mW