1. Powerful 8 neodymium dynamic drive units by Bluedio Lab.R2 Bluetooth stereo headset continues the legend of its world first 8 driver units which is composed of 2 woofers (50mm 50) and 6 3D speakers (13mm 32).
2. The perfect display of Bluetooth 4.0 low energy technology.Bluedio R2 Bluetooth headset has up to 1300hrs ultra-long standby time and up to 20hrs Bluetooth music playtime. You can enjoy every second of the wonderful music by the unique and comfortable headset wearing design.
3. HI-FI Monitoring Headset.Bluedio R&D Team keep one\'s mind on pursuing the most perfect reduction of headset with lower the THD to 0.1% percentage from 2010. Also R2 support many music formats such as FLAC/WAV/AAC and APE.
4. Maxim Amplifier.R2 Bluedio stereo headset equipped with Maxim Amplifier can dispose the source of the sound efficiently and present you perfect and real tone.In-built Microphones ,you can talk or chat on the mobile phones or on the internet such as facebook skype.

Frequency Response:10-22kHz
Talk Time: 20hrs
Music Playtime: 20hrs
Standby Time: up to 1300hrrs
Charging Time: 3~5hrs
Charging Port: Micro-USB 5PINS
Body Size:7.48x7.48x2.28 inch
Box Size:11.02x6.49x3.62 inch
Net weight: 260g
Accessories
USB charging cable 1pc
1.5m 3.5mm Audio cable 1pc
Pouch 1pc
User Manual 1pc