Gemercy I35 in-ear headphones will be the best choice for you, the long-playtime, great sound quality, advanced Bluetooth 5.1, clear voice microphone, comfort of wear, magnetic earbuds design, IPX5 waterproof, everything is irresistible. 1. Incredible Long-Playtime: A single charge (3 hours) powers 100 hours of listening. 2. Bluetooth 5.1: The Bluetooth 5.1 headphones could quickly connect to the previously paired device after power on. 3. Great Sound Quality: This in-ear headphone offers high-detail treble with superior clarity and bass response brought by 10mm drivers. 4. Hands-free with Microphone: A high-quality Microphone built in this Bluetooth Headphone enables a clear voice for calls, and free your hands. 5. Soft Silicone Neckband: Lightweight, smooth, and ergonomically designed for exceptional comfort day in, day out. 6. Magnetic Earbuds: When you’re not listening, use the built-in magnets to effortlessly clip the earbuds together. 7. IPX5 Waterproof: A waterproof casing protects your neckband Bluetooth headphones against sweat, rain, water, and more. 8. Voice Prompt: There's a voice prompt when calls come in, you will never miss a call. 9. Siri or Google voice Assistant: Short press the power button 2 times to start "Siri" or Google voice assistant, then you can give a voice command. Specifications: Bluetooth version: V5.1 Range: 10 m / 33 ft Input: 3.7 V ⎓ 1000 mA Charging time: 3 Hours Playtime (varies by volume level and content): 100 Hours Impedance: 32 Ω Frequency response: 2400-2483.5MHz What’s in the box: 1 x I35 Neckband Bluetooth Headphones 3 x EarWings 1 x Type-C USB Cable 1 x User Manual 1 x Carry Bag 1 x Gift box