Media-Tech MT3591 Epsilion BT

Wireless stereo bluetooth headphones
Bluetooth V4.2 interface with EDR
FM radio 87-108MHz
MP3 player with TF cards up to 32GB
Built-in high-quality microphone and speakers
Standards support: A2DP, HSP, AVRCP
Transmission frequency: 20Hz - 20kHz
3.5mm LINE IN jack
Foldable construction
Battery: Li-Polymer for 4 hours of operation
Micro USB socket for battery charging
Charging time: approx. 2 hours
Weight: 134g