Technical Specification:

Brand Name: Remax
Model Number: RB-S7
Connector Shape: Wireless
Line Length: 0.5m
Sensitivity: 93±3dB
Frequency Response Range: 20-20000Hz
Resistance: 32Ω
Wireless Type: Bluetooth
Bluetooth Version: 4.1, faster CSR connection
Distance: 10M
Charge voltage: 3.7 V
Speaker power: 5 mW
Battery: 90 mAh lithium polymer battery
Talk time: 8-9 hours
Playtime music: 6-7 hours
Standby time: 260 hours

Features:

Unique magnetic adsorption design and mini style
Can be as the Bluetooth camera controller, convenience for your selfie
Advanced technology, Bluetooth V4.1 / HD clear invoice/stereo music
Eco-friendly material, accessories with L / M / S size ear-caps
Intelligent mic noise reduction technique, and 260 hours long standby time
Music control: Previous and Next song/pause and play
Support mobile phone handsfree: Answer / End, Volume control / Be the camera
Compatible for all Bluetooth enabled devices
Bluetooth 4.1 Technology
Provides stable paring with your Bluetooth enabled devices; Offering you impressive dynamic sound even you are 10 meters away from your device.
Long Battery Life
The new and improved lithium polymer battery allows seamless enjoyment of music for up to 7 hours and 260 hours stand-by with a quick charge of only 1-2 hours.
Secure Fit and Extremely Light Weight
Designed at an ergonomic angle, RB-S7 can fit snugly in your ear without hurting your ear or popping off while moving around or working out; It weighs only 13g and does not cause any weight burden on your body.