Welcome to our srore.Type:Wrist StrapDurable MaterialStylish DesignVersatile UsageGreat Value Material: PlasticMaterial Type: AbsWire or Wireless: WireLessCertification: noneClarity: 1080PVideo format: AVIMemory type: support TF , up to 128GB (TF not included)Compression format: H.264APP support: /iOSCamera view: 150 ? wide angle operating time: 30 minutes type: lithium : 150mAh