Features 

• Advanced BT V.5.0 Technology: Compatible with almost any BT-enabled device. Super quick pairing with any Windows tablet, Android tablet, iPhone, desktop computer, laptop computer, smartphone, and more. 
• Its transmission distance is up to 20meters. Faster speed, more stable, more power saving. The low power consumption enables this wireless headset a 12 hours of playtime and 120 hours of standby time. Connector type: 3.5 mm 
• CVC 6.0 Broadband Noise Reduction: Wireless earbuds BT headphones with Microphone, make the journey more enjoyable with wireless, Noise-canceling headphones that fully immerse you in your favorite music. 
• Crystal Clear Sound Quality: Quality stereo in-ear headphones with superb bass sound. Clear high and low volume. Built-in mic with voice notification giving you a hands-free voice experience. 
• User-friendly Neckband and Earbuds: The neckband can be twisted or bended at any angle to fit your neck, never slipping away during exercise. 
• Waterproof and Bendable Neckband: Built with the precision-designed housing and internal Nano-coating reinforcement technology, Lenovo HE05 Bluetooth Sport Headphones prevent sweat and water. 
• Easy storage: The neckband is made of soft, skin-like silicone and a built-in stainless steel composite tube, which allows the neckband to stay close around your neck for a secure fit and fold for easy storage in your pocket or travel case. 
• 80mAh Battery for Long-lasting Music Enjoyment :80mAh low power consumption rechargeable battery enables Lenovo HE05 Wireless Headset an 8 hours playtime and 120 hours standby time, while 2.5 hours fully charged. 

Product Details 

Bluetooth Version: V5.0
Battery Capacity: 80mAh
Playtime: 8 hours
Driver Diameter: 10mm
Speaker Sensitivity: 98dB
Frequency: 20-20kHz