Rowkin Bit Charge: Stereo Wireless Headphones HD

Rowkin Bit Charge: Stereo Wireless Headphones with Portable Charger. Bluetooth Earbuds, Smallest Cordless Hands-free Mini Earphones Headset w/ Mic & Noise Reduction for Running and iPhone (Space Gray) Specifications: Dimensions: Earbud: 0.55”(D) x 0.82”(L) (14x21mm) Portable charging case: 3.58”(D) x 1.61” x 0.93(H) (L) (91x41x23.5mm) Weight: Earbud: 0.18 oz (5.2g) Portable charging case: 2.93 oz (83g) Battery type: Rechargeable lithium-ion polymer battery Battery input: Earbud: 5V / 35mA Portable charging case: 5V / 1A Battery Output: To earbuds: 5V / 200mA USB Output: 5V / 1A Battery capacity: Earbud: 55mAh Portable charging case: 2100mAh 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 playback time: up to 2 hours Talk time: up to 3 hours Frequency response: 20Hz-20kHz Bluetooth version: 4.1 Bluetooth profiles: HFP, HSP, AVRCP, A2DP and SPP Audio enhancements: Noise reduction and echo cancellation Amazon Link: http://amzn.to/2klu7ka