Condition: 100% Brand New Item Type: Wireless Headphone Model: F9 Material: ABS Color: Black Program: 5.1 Usage Mode: Touching Control Battery: Monaural Capacity 50mAh Charging Box 1200mAh Using Time: Headphone 3 Hours Charging Box Headphone Charging Time: 10 Electric Quantity Indicator: LED Digital Display Bluetooth Version: 5.1 Support Agreement: HSP, HFP, A2DP, AVRCP Transmission Distance: 10M Weight: Approx. 130g Package List 1 x Charging Box 2 x Headphone 4 x Earmuff 1 x Charging Cable 1 x English Manual 1Smart portable operation, bluetooth 5.1 automatic starting up and pairing, take out both ears automatic starting up, automatic pairing mobile phone bluetooth. 2Only need light touching multifunction switch, can enjoy amazing wireless movie stereo, easy to control. 3New LED digital charging box power supply display, browse left and right earphone charging box. 4Using CVC8.0 dual noise reduction technology for calls, calls more secure and clear. 5Multifunctional charging box, can used as mobile phone bracket, more convenient to watch movies, can placed horizontally and vertically. 6Wake up with one key, talk to your favourite voice helper, help you send text messages, set timer, just talk. 7Two headphones connected to the same phone at the same time, can connected to one headset, equivalent to two separate headphones. 8Portable charging equipment with large capacity, can not only charge the earphone, but also act as emergency charging method. 9Life grade waterproof, sweatproof and dustproof, support rainy day, outdoor sports. 10Bluetooth 5.1, barrier free connection within 10 meters, music/games/calls smooth, no delay, stable and continuous connection.