Nokia Radio Headset HS-2R. Interface type: Connector: Pop-Port . Dimensions (WxDxH): 70 x 31 x 18 mm, Weight: 38 g. Compatible products: Compatiblity: Nokia 3100 phone, Nokia 3120 phone, Nokia 6100* phone and other compatible phones . Cables included: Length of Cable: (phone) 610 mm, (earpiece) 530/870mm. Compatibility: Telephone