Packing List : Glasses(Built-in Battery), Charging&Storage Case, Glasses Cloth, Silicone Nose Pads, Polarized Paper,User Guide, Safety Information, Warranty Card,Screwdriver, Charging Cable, Color Case, Gift Bag

Battery : Type: Lithium Ion Polymer Glasses Capacity: 75mAh×2 Charging Method: Contact Type

Bluetooth : Bluetooth Name: SANGSTRE Ⅱ-Haydn Bluetooth Version: 5.1 Connection Distance: 10M Multipoint Connection: Support Multi-Point Connection

Standby &
Endurance : Integrated Standby: 15 days Single Play: 5.5 hours Single Call: 4 hours

Audio
Solution : Master Chip: RTL8753BFE Decoding format: SBC、AAC Output standard: 24Bit-192kHz stereo

Noise
Reduction : Active Noise Cancellation: Unsupport Call Noise Reduction: RCV.5.0-DSP Algorithm

Delay : 190ms

Waterproof
Level : IPX4