The Raycon E25 is a great pick, Thanks to its IPX6 coating, the Raycon E25 are waterproof earbuds ,are suitable for an active lifestyle, such as for fitness training, sports, and traveling. You can also use them in the office as they have a built-in microphone and easy controls. 32 Hours Of Quality Sound – Charge On The Go. The Raycon E25 Wireless Earbuds Can Last For Up To 8 Hours Playtime On A Single Charge. Charging case boasts a built-in 400 mAh battery that can charge your earbuds up to 3 times while on the go when fully charged; That’s 24 hours total! You can go through a most of the day with non-stop usage without any power shortage!