Feature: quantity: 1 The latest Bluetooth earphones free your hands to slide, surf and play games so you can get the most out of your smartphone. Enjoy hands-free calling. You can have long conversations with your friends without interfering with your normal activities. It is so small and portable that you can take it anywhere and use it anywhere. for left and right ears Supports wireless Bluetooth connectivity, hands-free phone calls and voice prompts It supports answering/rejecting incoming calls and redialing the last number It can connect two bluetooth devices at the same time Compatible with various brands of bluetooth mobile phones and bluetooth notebooks, tablets, MIDs, etc. Transmission protocol: HSP/A2DP/HFP/AVRCP Features: Bluetooth wireless headset Battery properties: polymer lithium battery Connection interface: Micro USB+ Bluetooth version: V5.0 Operating frequency band: 20Hz to 20KHz Power supply: built-in rechargeable battery, 300mA AD/DC charger: DC5 to 6V, 170mA Normal charging time: up to 1 hour (approximately) Talk time: Up to 48 hours Listening time: 35 hours Transmission distance: 10M Waterproof grade: IPX7 Standby time: up to 2600 hours Product size: (length X width X height) 65X45X18MM/2.59X1.77X0.71INCH Package Included: 1X bluetooth headset 1X Silicone ear tips 1X data cable 1X pair of headphones 1X Instructions