Lean, chiseled, and wire-free workout 'buds from Klipsch For me, fit and durability are the two most crucial factors for workout headphones. And the lightweight Klipsch T5 II Sports true wireless earbuds have ?em covered. Both the charging case and lightweight earbuds are fully waterproof, and Klipsch includes a generous helping of ear tips. Music plays wirelessly via Bluetooth 5.0, the latest and greatest version of the wireless technology. And the 5mm drivers feature a thinner diaphragm that can move, stop, and start more quickly. All to serve up that famous, dynamic Klipsch sound ? high on detail, low on distortion ? with a nice helping of bass to push you through more reps. Super-durable charging case banks 24 hours of power These earbuds offer up to 8 hours of battery life ? really solid for wire-free earbuds. Plus, the case banks an extra 24 hours of power to recharge on the go. If your workout was outdoors or especially grueling, no worries. The case has special material inside that will absorb and remove sweat or moisture. Large collection of ear tips for patented comfort Klipsch includes six different sizes of their patented oval ear tips with the T5 II Sports, you now get six different sizes. These soft silicone earbud covers slide in easily to keep the earbuds stable and secure while you move. I find they avoid pressure points and create one of the best seals out there ? crucial for getting solid bass response. You also get a pair of soft foam ear tips that contour to your ears, avoiding painful pressure points. So you have options! Klipsch even includes ear wings to further secure the earbuds while you workout. Reliable wireless connection Klipsch designed these earbuds with out-facing antennas for a stronger wireless connection and less audio dropouts. Tha Each earbud can make a strong, independent Bluetooth connection to your phone or other audio device. You can grab either earbud to make a quick call, or use both to listen to music. Either way, pairing is hassle-free.