D-552 is the latest new over ear bluetooth headphones

Wireless headphone & Wired headphones 2 options to use

FM Radio

TF card input

6-9 hours music & talk time

Bluetooth 5.0 headphones

4 colors available

* Bluetooth Version: V5.0

* Support profiles: HSP,HFP,AVRCP,A2DP,APYX

* BT frequency: 2.402 GHz - 2.480GHz

* Sound Mode: Stereo

* Charging time: 2-3 hours

* Music time: about About 6-9 hours

* Talk time: About 6-9 hours

* Operating Distance: about 20 meters

* Power Source: Li-ion Battery 400MAH

* Aux line in: 3.5mm socket  

* With FM radio: 87.5-108.0MHz

* TF card input:  Support 256M-32G

* Output: 30mW*2

* SNR: 98dB

* Speaker Impedance: 32 ohms/40mm

* Microphone: -42dB

* Accessory : USB line,aux cable,User manual