The Bluedio A Headphones are a fun and stylish pair of headphones with all the high end audio features you could want. Built to be used by music enthusiasts.
Bluetooth version: V4.1
Supported Profiles: A2DP, AVRCP, HSP, HFP
Bluetooth operating range : up to 10m (free space) Transducers: Φ57mm×2
Frequency response: 15Hz-25KHz
Sound pressure level (SPL): 118dB
Bluetooth music/talk time: up to 20 hours
Standby time: up to 1000 hours (about 41 days) Charging time: 2.5 hours for full charge