[DETAIL] Lenovo X3 Pro Bone Conduction Earphones Bluetooth Hifi Ear-hook Wireless Headset With Mic Waterproof Earbud And X4 X7 headphones Please note: Lenovo X3Pro is IPX56 waterproof, Built-in Bluetooth 5.3, Bone Conduction Headphone Lenovo X4 is IPX56 waterproof, cannot be used for swimming, no storage, Bone Conduction Headphone Lenovo X7 is New?Air Conduction Headphone. X3 Pro: 1. Lenovo X3 Pro?BT headset true bone conduction, all sound is produced by patented vibrator. Truly achieve the ideal effect of not damaging the eardrum. 2. 16MM Large moving unit,upgrade the sound quality again and make the sound more penetrating 3. BT 5.3?technology bring faster paring with your device and more stable connection with ultra-low latency. 4. With ergonomic on-ear design, only 25g in weight, super stable and o sense of weight wearing experience. 5. Seven Hour lasting endurance to meet your using needs, IP56 Sports waterproof, effectively reduce sound leakage X4: 1. True bone conduction, no speaker, internal vibration and sound; 2. IP56 grade is waterproof and dustproof, which can prevent sweat from penetrating during exercise; 3. It is made of high-strength titanium alloy, which can be bent at will at 360��, resisting compression and breaking without deformation for a long time; 4. Bluetooth-compatible 5.3 third-generation technology upgrade, more stable transmission; 5. 7 hours of super battery life, about 2 hours of charging time; 6. Battery capacity: 150mAh. X7: 1. New Air conduction technology, 16mm large moving coil unit ,Bluetooth version: 5.3 2. Effectively reduce sound leakage, sound insulation and vibration prevention 3. Stronger anti-interference ability, low latency, and smoother games 4. IPX5 sports waterproof, light to wear without burden 5. The directional vibrator is more comfortable to wear without in-ear 6. Vibration speaker size: 16mm 7. Bluetooth transmission distance: ��10M 8. Music time: about 10 hours 9. Charging time: about 2 hours 10. Rated Power: 0.75W, 80��3dB 11. Headphone battery capacity: 150mAh X7: [ATTRIBUTES] - Item Condition: New - Hign-concerned Chemical: None - Material: ABS - Item Condition: New - Hign-concerned Chemical: None - Material: ABS - Battery life up to[hours]: 10 - Maximum wireless range[m]: <10m - Category: Earphones & Headphones - Earcups Type: Sealed - Max Output: 10 - Number Of Drivers: 2 - Charging Method: cable - Headphone Pads Material: Silicone - Magnet Type: Other - Total Harmonic Distortion: 1 - Impedance Range: up to 32 ? - Bluetooth Version: 5.3 - Package List: User Manual,Charging Cable - Features: With microphone,Apple Siri Support,Active Noice Cancelling,Dual Connection - With Microphone: Yes - Is wireless: Yes - Support APP: Yes - Waterproof: Yes - Line Length: 0 - Frequency Response Range: 20 - 20000 - Plug Type: None - Function: for Video Game,Common Headphone,For Mobile Phone,for Powersports,HiFi Headphone,Sport,For Outdoor,For Swimming,For Office,For DJ - Active Noise-Cancellation: Yes - Volume Control: Yes - Control Button: Yes - Vocalism Principle: Bone Conduction - Wireless Type: Bluetooth - Connectors: Type c - Communication: WireLess - Style: Neckband - Certification: CE,RoHS - Origin: Mainland China - Brand Name: Lenovo - Support Memory Card: No - Resistance: 32 - Features 1: lenovo X3 PRO X4 X7 bluetooth Head-mounted earphone - Features 2: wireless Bluetooth headset - Features 3: Bluetooth wireless headphones - Features 4: lenovo earbuds - Features 5: for Video Game,Common Headphone,HiFi Headphone,Sport - Features 6: With Microphone,Apple Siri Support,Active Noice Cancelling - Features 7: Lenovo headphones - Features 8: Sports Game Competition Headset