Product description Features: 1. Waterproof, anti-perspirant 2. Built-in microphone hands-free phone 3. Bluetooth 5.0, 2 ear have voice when calling. 4. High quality Bluetooth wireless stereo headset Mini size, comfortable and lightweight in-ear design. 6. Open charging box automatic boot-up matching function. 7. You can play any audio files of paired Bluetooth device. 8. High definition, insulation and noise reduction, piston type 9. The charging case can charge 2 earbuds for approx 4 times With a pop-up function, when the headset leaves the charging compartment, the phone will automatically pop up the connected window. Specification: Colour: white/red/blue/yellow Size: 56 x 44 x 20 mm. Bluetooth version: 5.0 Bluetooth receiving distance: 12 metres. Talking time.3-4hours. Standby time: 7-10 days. Continuous music playback: 2 hours. Charging time: about 1 hour. PLEASE MESSAGE BEFORE ORDERING IF YOU WANT ANY COLOUR EXCEPT WHITE ( Red, Blue and Yellow in short stock