bluetooth audio sunglasses. Product Model: btglasses version 5.0 connection distance 10m; charging time 2-3 hrs; Battery capacity: 180mA polymer lithium; continuous listening 8-16 hrs; call standby: 30 hrs/240 hours; charging voltage: dc5v1a; frame color black; lens color: yellow, white, brown, gray, black, blue, Applicable models: Android, Apple, Mobile tablet notebook; with bluetooth device; Glasses material: ABS; Lens material: resin PC
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