Bluetooth Version: 5.4. Hearing Amplifier Mode: Default mode after power on, open directly for use. Mode Switch. Power On/Off. IPX8 Waterproof：Excellent waterproof performance, resistant to sweat and water splashes, suitable for daily sports and outdoor use.
Bluetooth Version: 5.4. Hearing Amplifier Mode: Default mode after power on, open directly for use. Mode Switch. Power On/Off. IPX8 Waterproof：Excellent waterproof performance, resistant to sweat and water splashes, suitable for daily sports and outdoor use.
Bluetooth Version: 5.4. Hearing Amplifier Mode: Default mode after power on, open directly for use. Mode Switch. Power On/Off. IPX8 Waterproof：Excellent waterproof performance, resistant to sweat and water splashes, suitable for daily sports and outdoor use.
Bluetooth Version: 5.4. Hearing Amplifier Mode: Default mode after power on, open directly for use. Mode Switch. Power On/Off. IPX8 Waterproof：Excellent waterproof performance, resistant to sweat and water splashes, suitable for daily sports and outdoor use.