148mm Digital BT Earmu (BFT20B) - Instruction Manual Crystal clear and full dynamic speakers Two omni-directional microphones Sound activated compression for hearing protection while permitting normal conversation Low power Bluetooth 4.0: phone call or steam audio Volume control knob (o/on/sound volume adjustment) Foldable headband design for easier carry Adjustable headband length to t dierent head size Soft ear cushion for maximum comfort Slim shape cup housing Replaceable 1.5V AAA batteries (2pc), included Vinnic alkaline batteries Warning: improper use will reduce eectiveness and could result in hearing injury or loss Bluetooth m m 0 1 2 Power ON / OFF Long press the BT button (3 seconds) to turn ON the Bluetooth and enter pairing mode (timeout 120 seconds) Long press the BT button (3 seconds) to turn OFF the Bluetooth BT Pairing Blue LED will ash (1 second intervals) while in pairing mode. Search advertising name: QT to connect Auto re-connect to previous last connected device during pairing if the BT device has been paired previously After paired, blue LED will be blinking every 10 seconds Bluetooth device will be switched o after 120 seconds if the device does not pair successfully Phone Call To answer a call, short press the BT button To end a call, short press the BT button To reject a call, press the BT button for 1sec During a phone call, if another call is received, double press the BT button to switch from rst call to the second call. Double press the BT button to redial the last phone number Audio Play To play music, short press the BT button To pause music, short press the BT button during playback FCC Warning This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. NOTE 1: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment o and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit dierent from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help. NOTE 2: Any changes or modications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.