How to Use: 1. Press and hold ● to switch on, voice prompts 'power on'. 2. Press and hold ● to switch off, voice prompt 'power off'. Specification: Item Type: Bluetooth Headphone Upgrade Cable Material: TPE, PU Communication Distance: Approx. 10m/32.8ft Bluetooth Version: V5.0 Chip: For Qualcomm QCC3034 Music Playback Time: Approx. 12 Hours Protocol Support: aptX, aptXHD, aptXLowLatency, CVC, for SBC,andAAC Built in Li-polymer Battery: 120mAh Support: 2 Simultaneous Connections IPX5 Rated for Water and Sweat Resistance Package List: 1 x Bluetooth Headphone Upgrade Cable 1 x Storage Bag 1 x Manual 1 x Charging Cable