System with wireless interface for removable support accessory

A head-mounted device may have a head-mounted housing. The head-mounted housing may have a display that displays images for a user. When the user is wearing the head-mounted device, the image can be viewed from an eye box. A headband may be removably coupled to the head-mounted housing to assist in holding the displays in place during operation of the head-mounted device. The headband and the headset may have wireless power circuitry and communication circuitry. The wireless power circuitry may be used to transmit power from a battery in the headband to the headset. The communication circuitry may include wireless radio frequency circuitry and/or optical circuitry that allow the headband to transmit wireless data to the head-mounted housing. The head-mounted housing may also transmit power and/or data to the band. 一种头戴式设备可具有头戴式外壳。该头戴式外壳可具有为用户显示图像的显示器。当该用户正穿戴该头戴式设备时，该图像能够从适眼区(eye boxes)观看。头带可以可移除地联接到该头戴式外壳以帮助在该头戴式设备的操作期间将这些显示器保持在适当位置。该头带和该头戴式外壳可具有无线功率电路和通信电路。该无线功率电路可用于将功率从该头带中的电池发射到该头戴式外壳。该通信电路可包括允许该头带将无线数据传送到