DESCRIPTION Transmission range: 10 meters Features: Support for music Bluetooth Protocol: 5.3 Usage: earplug type Single-binaural or not: double-sided stereo Color: Black, white, red, blue, pink, grey Type: tagged Chip type: China Blue News Battery life: 0-4 hours (hour) Style: Sporty Waterproof performance: Waterproof is not supported Material: Plastic Please don't hesitate to contact us if you have any questions or concerns before or after your purchase. We are committed to your 100% satisfaction. 1.Shipping Cost: Select the quantity first, then click the country via logistic methods in the page. 2.Go the the next page, you can see the detail shipping cost by each logistic methods under your selection. 3. Item Processing Time: The processing time for a specific order varies with the product type and stock status. Mostly, processing time can be 3 to 15 working days. Since your feedback is very important to our business`s development, we sincerely invite you to leave positive feedback for us if you are satisfied with our product and service. It`ll just take you 1 minute. Thank you!