Specifications: 

* Chip Type :AC6976 D4
* Bluetooth Version :V5.1
* Distance (barrier-free) ：≥15m * Battery Capacity : 120mAh*2
* Charging Voltage ：DC5V
* Charging Time ：2h
* Standby Time ：≥200h * Play time: ≥6h * Product Weight：About 42g * Frame material: ABS+PC * Lenses material:PC * Product Size ：148*158*52 (53口19-145)) * Water proof: IPX4
* Product packaging size: 17.5*8.5*7.5 cm
* Product weight: 42 g
* Product with packaging weight: 0.28 kg
* Q'ty: 40 pcs
* N.W: 11.2 kgs
* G.W: 12.0 kgs
* MEAS: 46*37*33 cm

Features:

* TWS Wireless Audio Technology

* Detachable Front Frame And Lens

* Adaptive To Various Face Shapes

* Unparalleled Surround Sound

* One Touch Voice Interaction

* Fast Charging,Lasting Endurance

* Water proof: IPX4

* When you open the temples, the power will turn on.

*The left/right channels will be paired automatically.

*Connect your mobile device with Bluetooth for pairing, and enjoy the perfect sound quality of music or calls freely.

*The left and right channels will be paired automatically.