Havit HV-H2575BT Headphone With Bluetooth function Adopt the latest in Bluetooth 4.2 technology with rock-solid transmission and widespread compatibility with all other Bluetooth devices. Unplug with up to 10 meters of connection range, and enjoy wireless music and phone calls. Rechargeable lithium battery: with 5-6 hours of call duration, this headset frees up your hands when you're on the go – from biking to driving, you'll be able to stay connected. Supports HD communications and music/video playback. Track switching and volume adjustments can be made right from the headphones. Folding structure design, Convenient to carry, Scalable design, can suit difference head shape. With built-in FM radio function Support Micro SD card to listen music, quick and easy. Soft ear cover making wear comfortable Hands-free calls making free communication. Warning: Prolonged exposure to loud music or other sounds through headphones can damage your hearing. Please always adjust your headphones to a suitable volume. Also, do not use while driving, as headsets can distract you from the road and cause accidents. Features: -Foldable Headphone -Double Enjoyment (Wired + Wireless) -Enhance the sound insulation, Easy to isolate external noise to create a perfect music enjoyment surroundings -Imitation protein leather for Soft Comfort Specification?

Version?V4.2 -Wireless working range: 10M (without obstacles ) -Charging means: micro USB -Speaker: 40mm -Speaker sensitivity: 110±3dB at 1KHz;1mW -Speaker frequency: 20-20KHz -Rated power: 8mW-12mW -Input voltage: DC 5V -Battery: Rechargeable 3.7V 300mAH Li-polymer battery -Play time: Up to 5H -Talk time: Up to 6H -Charging time: About 2H -Standby time: Up to 180H -Voice chat: supported -Voice prompt: supported - Dimension: 195x85x205 mm (L x W x H) - Weight: 172g (Approx.) What's in the box 1 x Headphone