Rowkin Bit Charge Stereo: True Wireless Earbuds w/Charging Case. Bluetooth Headphones Smallest Cordless Hands-free Mini Earphones Headset w/Mic & Noise Reduction for Android & iPhone (Gold);

1. The World's Smallest Stereo Wireless Headphones
2. Designed for Sports
3. Innovative Dual-Function Portable Charger
4. Premium Material and Finish
5. Audio Enhancement with Bi-directional Noise Reduction and Echo Cancellation
6. Compatible to All Bluetooth-enable Devices
7. 6 Month Warranty
Specifications:
Dimensions:
Earbud: 14mm (D) x 21mm (L)
Portable charging case: 91mm (L) x 41mm (W) x 23.5mm (H)
Weight:
Earbud: 0.18 oz (5.2g) each
Portable charging case: 2.93 oz (83g)
Battery type: Rechargeable lithium-ion polymer battery
Battery capacity: Earbud: 55 mAh
Portable charging case: 2100 mAh
Charging time:
Earbud: ≤90 minutes
Portable charging case: ≤150 minutes
Standby time (power on): about 27 hours
Standby time (power off): about 120 days
Music/Talk time: up to 3 hours
Frequency response: 20Hz-20kHz
Bluetooth version: 4.1
Audio enhancements: Noise reduction and echo cancellation