TECHFIRE Fire 500v2 Neckband hi-bass Wireless Bluetooth headphone Bluetooth Headset 4O HRS BATTERY BACKUP BLUETOOTH WIRELESS HEADSETINSULATING DESIGN - Full silicone material with double layer ear cup to perfectly suppress background noise, snoring, TV sounds in living room, office and roommate sounds, etc. Ultra realistic sound - Enjoy even the smallest nuances and sound in studio quality thanks to high resolution audio, which outperforms CDs. No tangled cables – thanks to the practical magnetic closure, the cables do not tangle, and the headphones are always ready to use. Multi-device support - Enables wired connections when the battery runs out or devices without Bluetooth to be connected, as well as wireless mode via Bluetooth for compatible Android devices